I Built an AI SaaS at 18 With No Money, Got Sick Three Times, and Still Shipped It

There is a version of the startup story that gets told over and over. The founder had a vision. They built the thing. Users came. Money followed. My story does not go like that. I am 18 years old, I live in India, and on November 10th 2024 I opened my laptop and started building something I had never built before. Not a small script. Not a school project. A full SaaS product — an AI landing page builder called Sento AI — completely alone, with no co-founder, no mentor, no funding, and no real roadmap. What followed was four months of things going wrong in almost every possible way. The Image Problem That Ate Ten Days The core idea behind Sento AI was simple: a user types one sentence describing their product, and the AI generates a complete, professional landing page in seconds. Hero section, pricing table, testimonials, call-to-action — everything. Getting the text to generate correctly took weeks of work. But then came a problem nobody warned me about. The images were wrong. Every ti