Ya, but it takes time. Do you think I got to be the person I am over night?! Hardly... I went through some of the same things. Changing my clothes, appearance, buying and doing all sorts of ridiculous things to appear 'cool' or get girls to like me.
You know, I noticed the young girls now days(I'm 35) spend so much time, money and effort to look 'beautiful', and I just don't get it. They wear gobs of makeup, dye their hair, expensive boutique clothing, tatoos, and all of it is designed to be 'look at me'. Well that's the problem; I can't see YOU because your hiding under all that stuff. I understand the peer pressure in High School, etc, but that's a major turn off for me. I WANT plain, I WANT simple, I mean what's wrong with it? All I can say is these two things; vanity is a fleeting thing. It is solely based on time, of which we all have a set amount; it WILL eventually leave, which is why I choose to put my faith and effort in things that WON'T leave, like solidly built relationships and empathy. Those are timeless, but the last thing I will say(in regards to your crush) is that sometimes in life we go after things that aren't good for us, and when we finally get them, maybe it turns out to be something(or someone) you actually didn't want or need in the long run. I would never be with anyone now who couldn't accept me for me, and GOD it feels good to say that, though it did take years and practice. Well worth it in the long run for me though, I'd never go back to that now. Being controlled by a rope from those around me.