Also, don't bother researching illnesses for yourself on the web. A medical professional will have every motivation to pay attention to every little symptom you tell about.

The first iteration of a startup will almost always be wrong and you'll have to throw most of it away. So it doesn't matter so much whether its the best code in the world or not. The important thing is that you learn from your first iteration. If you don't have a tech background and hand off the first implementation to a superstar, it's very possible that you won't learn anything. If you do it yourself, you will learn a lot one way or another.

Also, it helps in many ways to be able to demonstrate that you are not an idiot.