Fake it till' you become it

I think I need a confidence boost in actually doing things that I think that could help with my future be better for me. I know that when I'm older, I want to become a photographer but I'm always hesitating to do things. I'll think it through and I'll wonder if it is a good idea, if people will judge, will I actually become the thing I see myself in, will it happen. Basically I would do a lot of metacognition. Metacognition means to be thinking about you thinking. Over the years I've noticed that I'm the type of person who wants to do everything while I have the opportunity but most times it wouldn't happen because I think to much about the aftermath the could happen with one decision. To fake it until I make it I just need to start believing in myself that I can do it if I just put my mind into it and forget the negative things that could happen but notice in it that things can happen unexpectedly.