Study anything on how to succeed at working for yourself, and the universal advice is usually "just do it".
The experts say if you want to write, just start a blog. If you want to start a clothing line, start sketching your designs. Want to act, take acting lessons. In other words, if you have an idea of something you aspire to, just get going on it.
That sounds really good, but there can be many, many steps before the start. And, if you're not prepared to step each step to the start, you stop. Once you stop, it's difficult to gain momentum, your energy dips, and you question — if you can even do — what you think you want to do.
How do I know? Because I'm THAT person. I think, overthink, rethink, question, replay, and move two steps up then three steps back. And to cope, I'll eat a slice of my favorite coconut cake worth 1200 calories. (That's my empty cake container I dug out of trash to show you!)
I've learned from all this self-knowledge, though. I've hacked just about every one of my negative personal traits, and use them to my favor. I have momentum, energy, and I'm confident. So, yes. Finally. I'm "just doing it". And, you can, too!
If you need anything, just email me. I'm always here to help.