It's not who you are that holds you back, it's who you think you're not

Lots of girls don't seem to have much confidence when it comes to everything. But I’ll be honest you can do anything. I started out as a right little Tomboy, I used to go around wearing awful (and I mean awful) clothes, I had pretty short hair which DID NOT suit me at all. It's taken me a while to get to this point in my life where I’m pretty comfortable about my looks, I mean I even wear dresses now.
To find the confidence to do anything you have to accept who you are, and no don't go and think 'well I’m crap' or whatever, you are a woman and have just as much right to be sexy along with everybody else. I'm not saying you should pile on there slap and get you're boobs out...that’s not the point. You have to learn to accept yourself and become you're own best friend.
Try not to think about other people, and I know it's hard but try not to listen to what other people say to you. It's you're life; it's up to you what you want to do and how you want to dress. I've been guilty of this, I remember when I was 14 and listening to my 'best friend' at the time who called me horrible things because of the way I dressed...it's hard but DO NOT listen to them, they're just trying to make themselves look better and deep down they know that you're better than they are so they HAVE to big themselves up, believe me I have known a lot of people who have done this and it's been a battle to block them out of my thoughts.
A good thing to do to get you're confidence up is to spend time with yourself. When you wake up on a morning smile, look into you're mirror and think positive thoughts about yourself, because you are fantastic and you can do anything! If you go shopping, go by yourself and get an item of clothing that you wouldn't usually wear (but something you can wear everyday) and own it. When you wear it you'll feel great because doing something different for you and it really does get you're confidence up! and life’s for living not for sitting in you're room and thinking you were somebody else, walk down the street and smile because there is nothing sexier than a girl who loves herself....

hope this has helped some of you people, and if you want to ask any questions feel free to.