A lot of people here are not being real about this whole situation, and are feeding you false hopes in efforts to cheer you up. I'll tell you how it is, and keep in mind, I'm trying to help you here.
Attraction plays a large role in whether or not you hook up with the girl. If she is not attracted to you, all your confidence, c&f, neg-hits, whatever the hell you have will be useless. Girls can be just as superficial as guys.
If a girl finds you hot, you DON'T NEED to be a DJ, you don't need to use any sosuave / fastseduction / DYD methods. If a girl finds you hot, you really don't have to put in a lot of work.
I don't consider this girl a b!tch, or hold it against her for what she said. Would you have approached her if she was a fat chick and not a cheerleader? Probably not. Why? Because you have standards and don't want to date someone bellow your standards. And if your friends asked you why you didn't go for the fat nerdy chick with glasses, you'd probably be brutally and honest and tell them you didn't find her attractive for various reasons.
Despite what these silly pick up artists tell you, there are leagues, and bro, you were out of yours on this one. She is a cheerleader, she hangs around athletes who have chisled bodies, and have had their pick of women for such a long time that their game is near perfect. The fact is, she has probably been f*cked by guys who are not only better looking then you, but were probably even more confident / had stronger game. She wont settle for you, just like you wont settle for a fat nerdy chick.
So what do you do? You can either:
1.) Set your standards lower and stop going after the girls in the top percentiles.
2.) Improve yourself to the point where you are their equal, if not their superior.
The confidence you had was obviously fake, otherwise you wouldn't have cared what that girl said. Improve yourself, and build REAL CONFIDENCE that no one can take away from you. Don't pretend to be a prize and approach cheerleaders, BECOME THE PRIZE FIRST. Don't go around thinking you're better then any other guy she can find and then hope she buys into your act, BECOME BETTER THEN ANY OTHER GUY IN HER LIFE
You say you're husky? What the hell is husky? If she said you're fat, you probably are. The good thing is, you can do something about this. Lose that fat, start hitting weights, and achieve that physical perfection that makes girls wet when they see you without a shirt. It's not f*cking hard, put in several months of hard work, and you WILL see results.
As for this girl, forget about her, and use this experiance as motivation.
Good luck bro.
Get a sense for a woman who is more mature. Figure out how to act around them. Go on a bunch of dates with older women. I'm sure you can accomplish that. Get some experience and try to accept the fact that you may be more mature then the girls you are interested in. Most men are more mature then women at your age. Women will tell you otherwise but it is a fact.