There are many things out there that I’m sure you would like to have, do or be. The only question I have is “Why not you?” Is there really anything insurmountable standing in your way? Who is really trying to stop you? Or do you stop yourself before you even start?
If you’re really afraid, start out small. Do something that seems like it would be hard. Once you’ve done that, do something that seems really hard. Then do something that seems like it would be impossible. I hope that you have some good failures through this process and you learn that failure isn’t fatal.