How do I find out who I am?

I don’t know who I am, I don’t know who ‘myself’ is, I’m just like, still a blank slate, sure, I have a few things I like. I don’t speak out about anything when I’m with friends and I can’t go outside unless I can go with one of my friends, so like how do I find out who I am? Who do I find out what I want to do for the future?