Help? awkward teen phase?!?

Hey, I'm a gay thirteen year old (I'm a guy). I'm really self-conscious and closed to people. So I'm always noticing that people are themselves and I begin to realize I should be like that but when I do I'm just afraid everyone will judge me. I've been judged all my life because people knew I was gay even before I did myself. So I think that might have something to do with this, maybe. I don't know why but I'm SO worried on what people will think about me, enough that it prevents me from being myself. I think I'm getting better but it's mostly that I'm really afraid of that "popular group" of kids. So I think I'm starting to realize who I am, maybe I just need time to accept myself, so obviously I'm going through alot right now. SO advice?