Doing side projects because you think it will make you money is probably the worst way to do it. Or at least have almost no expectations of making money. You

Doing side projects because you think it will make you money is probably the worst way to do it. Or at least have almost no expectations of making money. You do side projects because it's interesting to you and you want to learn. And maybe you can leverage what you learn into getting a job doing something that really interests you. Chances are much greater that you will make a lot more money getting a better job through a side project than you will from the side project itself.