I don’t think I’m pretty enough to achive things I want

I’m not looking for compliments. So I’ll post anonymously. But I’m looking for advice on how to Overcome this. I mean even I know the thought of not being pretty enough to do something is rediculus but it keeps me. I can’t picture me in the life I want. It makes really insecure and weirdest part is I think everyone is beautiful. I think I’m beautiful. But I don’t have the confidence to belive that me, this body, this face, can achive her dreams, make friends, be a teenager.