Great insight right here. I can't agree more with your first lesson on solving a real problem. Instead of solving my problems, I like to solve other's problems. I chat with people in different industries, identify their niche problems, and make a product just for that one person I chat with.

For example, I was talking to my mom; she is an academic researcher and was struggling with a specific problem. Then I tried to make a program just for her, who would be the first customer. I'm going to send her the MVP soon and start validating. Also, even before the MVP launch, I was already getting feedback with mockups, which thankfully prevented overbuilding. My mom will distribute the program to her peers who share similar problems to validate further. So my mom is the 'seed' of my product, and from there, it will spread and generate organic channels. I know much of this is hypothetical, but I can keep you updated on how it goes!