This guy... And closed it a few months later. Hated it!

Same here. The problem with me was that I tried to work with every type of client. This is a problem because not all of them understand what you bring to the table and they always have something bad to say about the pricing. This could be that I live in Puerto Rico and people don't quite get the benefits of tech yet? But still, this was my experience.

If you are going to do this, try to get "good customers" even though you don't have as many at first.