{"id":5053,"date":"2025-09-25T07:32:40","date_gmt":"2025-09-25T06:32:40","guid":{"rendered":"https:\/\/blog.iese.edu\/mba\/?p=5053"},"modified":"2025-09-25T07:32:40","modified_gmt":"2025-09-25T06:32:40","slug":"how-my-summer-entrepreneurship-experience-changed-everything","status":"publish","type":"post","link":"https:\/\/blog.iese.edu\/mba\/how-my-summer-entrepreneurship-experience-changed-everything\/","title":{"rendered":"How my Summer Entrepreneurship Experience changed everything"},"content":{"rendered":"<h4><strong>How much can 8 weeks change your life? <\/strong>For me, it changed everything.<\/h4>\n<h4><strong>From Consulting to the MBA<\/strong><\/h4>\n<p>Before IESE, I spent almost seven years in consulting, growing from intern to manager in a boutique firm in Brazil. I loved the exposure: working with different industries, practices, and C-level executives. But something was missing. I wanted to feel the impact of building something from scratch, to take risks, and to see a direct connection between my work and people\u2019s lives.<\/p>\n<p>I had many hypotheses about where I wanted my career to go, but I knew I needed more learning and a more international perspective before making a leap. My dream of a career change plus geography change led me to the MBA.<\/p>\n<p><strong>The entrepreneurship focus at IESE was one of the reasons I chose the school. <\/strong>From the beginning, <strong>I had a plan: use my first year to learn more about tech companies and startups, get involved with Women in Business, run a half marathon (or two), build strong friendships, and then spend my summer in the <a href=\"https:\/\/www.iese.edu\/entrepreneurship\/summer-experience\/\">Summer Entrepreneurship Experience<\/a> (SEE) testing a business idea.<\/strong><\/p>\n<h4><strong>First Year: Surprises and Highlights<\/strong><\/h4>\n<blockquote><p>The MBA taught me about prioritization from day one. FOMO is real \u2014 but you quickly realize you can\u2019t do it all.<\/p><\/blockquote>\n<p>Sometimes it meant trading hours of sleep for a late-night social gathering. Other times, it was choosing between attending a professional event or catching up with friends I had already made. Even simple things like whether to spend a free afternoon meeting new classmates or deepening the friendships I\u2019d already built felt like meaningful decisions.<\/p>\n<p>Amid those trade-offs, a few highlights stand out. <strong>The Communication course was a great surprise.<\/strong> In just one week, I saw how much clearer and more confident I had become in contributing to class discussions. <strong>I also made time to keep exercising<\/strong>: while I didn\u2019t manage the two half marathons I had originally planned, I did complete one. <strong>Getting involved with Women in Business was another defining choice<\/strong>, one that eventually led me to being elected President of the club in my second year. And perhaps most importantly,<strong> I found the time to make the lifelong friends I had hoped for.<\/strong><\/p>\n<h4><strong>Choosing SEE<\/strong><\/h4>\n<p><strong>Despite my plan, I almost lost sight of my \u201cwhy.\u201d<\/strong> Surrounded by classmates pursuing consulting or big corporate internships, I felt pressure to follow the same path. I even came close to accepting an offer.<\/p>\n<p>Then I paused and asked myself:<\/p>\n<ul>\n<li><strong>Why did I come here?<\/strong><\/li>\n<li><strong>What do I really want to learn?<\/strong><\/li>\n<li><strong>And what if the riskiest thing was not taking the risk?<\/strong><\/li>\n<\/ul>\n<p><strong>That moment of clarity brought me back to my original goal \u2014 and to SEE.<\/strong> <strong>For me, it was the best way to test my main career hypothesis: <em>Do I want to found my own business?<\/em><\/strong> SEE offered the perfect mix of mentorship, structure, and freedom to find out.<\/p>\n<h4><strong>Building Celestin<\/strong><\/h4>\n<div id=\"attachment_5060\" style=\"width: 210px\" class=\"wp-caption alignright\"><a href=\"https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5060\" class=\"wp-image-5060\" src=\"https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE-169x300.jpg\" alt=\"\" width=\"200\" height=\"356\" srcset=\"https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE-169x300.jpg 169w, https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE-576x1024.jpg 576w, https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE-768x1365.jpg 768w, https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE-864x1536.jpg 864w, https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-SEE.jpg 990w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a><p id=\"caption-attachment-5060\" class=\"wp-caption-text\">Working hard in the summer to create social media content to promote our business, Celestin.<\/p><\/div>\n<p>I joined forces with two MBA 2026 classmates, Simon Spector and Mariana Valencia, to build <strong><a href=\"https:\/\/www.yourcelestin.com\/\">Celestin<\/a> \u2014 a matchmaking service for expats in Barcelona.<\/strong> In just 8 weeks, we:<\/p>\n<ul>\n<li>Interviewed 100+ people<\/li>\n<li>Released 2 MVPs<\/li>\n<li>Hosted a sold-out event<\/li>\n<li>Built a community of 100+<\/li>\n<li>Reached 30k+ people online<\/li>\n<\/ul>\n<p>No two days looked alike. Some days were spent creating social media content, others pitching at expat events, or running our matching process. <strong>The only certainty was that I would end each day having learned something new.<\/strong><\/p>\n<h4><strong>Lessons Learned<\/strong><\/h4>\n<p>Those 8 weeks taught me more about myself than I expected.<\/p>\n<ul>\n<li><strong>I discovered that I can execute even when the outcome is uncertain \u2014 and that\u2019s when I thrive.<\/strong><\/li>\n<li><strong>I learned how much creativity I bring to problem-solving.<\/strong><\/li>\n<li><strong>And most importantly: I love building something from zero.<\/strong><\/li>\n<\/ul>\n<p>At Celestin, we realized we had tapped into something real. People are tired of dating apps and are craving genuine connection. That insight continues to drive us. <strong>Today, we\u2019re using the New Ventures (NAVEI) elective course in our second year of the MBA to keep developing Celestin with guidance from one of our SEE mentors.<\/strong> Our next milestone: testing willingness to pay and building a scalable product by December.<\/p>\n<h4><strong>Advice for Future Founders<\/strong><\/h4>\n<p>If I could give advice to myself before starting SEE, I\u2019d say:<\/p>\n<ul>\n<li><strong>Use the IESE community early<\/strong> to test your hypotheses. Conversations can save you months of assumptions.<\/li>\n<li><strong>Have different plans.<\/strong> Focus is key, but don\u2019t put all your eggs in one basket.<\/li>\n<li><strong>Launch your MVP fast.<\/strong> The sooner you test, the sooner you learn and iterate.<\/li>\n<\/ul>\n<blockquote><p>So, if you\u2019re considering entrepreneurship, my message is simple: try. The worst-case scenario is that you learn more about yourself in eight weeks than you thought possible \u2014 and those lessons will stay with you no matter what path you choose.<\/p><\/blockquote>\n<p><strong>SEE isn\u2019t just about testing a business idea. It\u2019s about testing yourself. And for me, it changed everything.<\/strong><\/p>\n<p><strong><em>Written by <a href=\"https:\/\/www.linkedin.com\/in\/mariana-tasso\/\">Mariana Tasso<\/a>, MBA Class of 2026<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-Tasso-Profile.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5061 size-thumbnail\" src=\"https:\/\/blog.iese.edu\/mba\/files\/2025\/09\/Mariana-Tasso-Profile-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p style=\"margin-top: 0pt;margin-bottom: 12pt;font-family: 'Trebuchet MS';font-size: 12.0pt;color: #444444\"><em><strong><span style=\"background: white\">Pursue your dream MBA! Take these next steps today:<\/span><\/strong><\/em><\/p>\n<ul style=\"direction: ltr;margin-top: 0in;margin-bottom: 0in\" type=\"disc\">\n<li style=\"margin-top: 0;margin-bottom: 0;vertical-align: middle\"><em><strong><a href=\"https:\/\/www.iese.edu\/en\/formularios\/form4DDB7A5C\/getFormulario.do?type=brochure&amp;url=http%3A%2F%2Fforms%2Eiese%2Eedu%2Fforms%2Fen%2Fmba%2Fdownload%2F&amp;_ga=2.112245826.779855112.1526377411-1084489552.1519787562\"><span style=\"font-family: 'Trebuchet MS';font-size: 12pt;background: white\">Find out more about IESE full time MBA program here<\/span><\/a><\/strong><\/em><\/li>\n<li style=\"margin-top: 0;margin-bottom: 0;vertical-align: middle\"><em><strong><a href=\"https:\/\/www.iese.edu\/en\/formularios\/form7DB73084\/getFormulario.do?url=http%3A%2F%2Fforms%2Eiese%2Eedu%2Fforms%2Fen%2Fmba%2Ffop%2F&amp;_ga=2.111540290.779855112.1526377411-1084489552.1519787562\"><span style=\"font-family: 'Trebuchet MS';font-size: 12pt;background: white\">Get Feedback on Your Profile<\/span><\/a><\/strong><\/em><\/li>\n<li style=\"margin-top: 0;margin-bottom: 0;vertical-align: middle\"><em><strong><a href=\"https:\/\/iese.embark.com\/apply\/mba-2028\"><span style=\"font-family: 'Trebuchet MS';font-size: 12pt;background: white\">Apply Online<\/span><\/a><\/strong><\/em><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>How much can 8 weeks change your life? For me, it changed everything. From Consulting to the MBA Before IESE, I spent almost seven years in consulting, growing from intern to manager in a boutique firm in Brazil. I loved the exposure: working with different industries, practices, and C-level executives. But something was missing. I&#8230; <\/p>\n<div class=\"more-link-container\"><a class=\"continue-reading-link\" href=\"https:\/\/blog.iese.edu\/mba\/how-my-summer-entrepreneurship-experience-changed-everything\/\">Read More<\/a><\/div>\n","protected":false},"author":2108,"featured_media":5059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85922,85920],"tags":[45523,157,86327,67298,86304,93344],"class_list":["post-5053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-your-career","category-students-corner","tag-career-development","tag-entrepreneurship","tag-iese-experience","tag-iese-mba","tag-student-life","tag-summer-entrepreneurship-experience"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/posts\/5053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/users\/2108"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/comments?post=5053"}],"version-history":[{"count":8,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/posts\/5053\/revisions"}],"predecessor-version":[{"id":5064,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/posts\/5053\/revisions\/5064"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/media\/5059"}],"wp:attachment":[{"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/media?parent=5053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/categories?post=5053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iese.edu\/mba\/wp-json\/wp\/v2\/tags?post=5053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}