Building confidence in myself?

Try writing down things that you DO like about yourself. It's not gloating to say "I'm a beautiful person and I know it!!" It's probably one of the most empowering things you can say. If you're uncomfortable with your style, try on some new clothes. Change your hair! Change your hobbies! Exercise (you really do feel better)! And besides, when you are comfortable in your own skin, you aren't as afraid to branch out. You really have to know that you're beautiful inside and out. Start becoming friends with people who are truly good people, you don't need any of that gossip crap. Find what you're really good at, and do it!! No one's good at everything but everyone's good at something.