Sam won't take her, but I'm a little too self conscious and cowardly to ask her(I've never been in a successful relationship ever, and I don't just mean that because I'm fourteen- I doubt a girl has ever 'liked' me in my lifetime). The only way I ever get close to her is with sam and passing period.That's either an hour(lunch) and a walk(She lives very close to Sam), or five minutes in a crowded hall. I'm not just going to bail out, everyone else is either out of my league or way too familiar, or crazy(my friend Anastasia wears scarfs around her head like a muslim every day in and out of school and carries around a butcher knife :/).
Well, confidence in yourself is key in everything.
You need to make sure you believe in yourself, and you can stand yourself.
If you hate yourself, then you shouldn't wonder why everyone else does too.
Now, with that being said, if there's any other ways to get in contact with her (facebook, sms, myspace) hop onto that and talk to her.
You need to be quick though, don't want to get friendzoned.