Looking through your previous comments history. In some it seems you have had some success with websites. Do you consider yourself successful?

Did you build your products on the side whilst holding a full-time job? And you just went at it, creating products and getting cash from users from it?

Are you a good programmer?

I've been thinking about these things a lot, but finding it hard to actualise everything around it. From what you've said, it appears to be as simple as it is. Build a product, try to get customers, and maybe make some money. Worry about everything else later.