Gonna be a looker

Mi
So I'm 15, have braces, and am brunnete. I'd say I have more of a girl next door look, pretty but not super stunning. Over the years I've gained confidence, but my braces can be annoying and make me a little insecure about my smile. A few people have said I'm pretty, but sometimes people just tell me "you're going to be a looker when you get older" or "you'll probably be hot when you're older". And I'm glad I'm not going to hit my peak in high school looks wise. But any tips on how to stay confident when surrounded by girls who already look like movie stars? 
O