Torn,
I'm sorry for what you are going through. But (maybe it's of little consolation, but still...) you're not alone: I had your same feelings about my appearance and my face in particular around a year ago. I had this "feeling" whereas I was not seeing, feeling, moving my face, but rather a mask over which there should be my face. I was in fact terrorized because I thought my face resembled a doll's so much, I'd never be able to pass as male (which was not that true, but my mind was a distorted glass). I remember one vivid dream in which I was a porcelain doll and my face started to crumble from the edges, like in those horror movies...I like drawing as you do and made LOTS of those kind of drawings here and there.
Since then, having overcome my gender issues, I no longer feel my face as alien. I still wish it was more masculine and adult-looking, when I'm around strangers I'm perceived to be 5 years younger than I am, but I'm not complaining (too much). And about Art School, I have to differ: it actually made my issues worse than they were (there was also the fact mine was a crap school, bear in mind). It was like giving a knife to a self-harmer. I'm studying phisics now and I like it very much, a solid, no-nonsense kind of school might benefit you. Feel free to pm me anytime, I'll surely answer when I can.