Hey Yeah I think it's pretty much normal to be worried about moving out from home and stuff. Moving to an unfamiliar envoierment and school, but that's life. I think that you should really just get the positive attitude right from the start, when you actually are there. Because the first impressions are very important, and there's going to be a lot of kids in your position.. moving out to some place they know nothing about. No friends or family no nothing. So the odds are that you'll make friends with little effort in no time, as long as you are self confident and social. Taking part in discussions, asking to hangout with people and stuff like that.
There's also another aproach to this, it's to get a hobby. Start playing some sport or something, tone up your body and stuff. That's what all the chicks like, haha. If you haven't already been working out or playing some sport, you'll be suprised how far the hobby gets you. It will get your mind A LOT brighter, your problem solving is going to get a lot faster.. and just generally you'll be feeling a lot better. Besides you're bound to get friends that way too! Sharing the same interests with people, makes sure you'll be having a good time anytime you meet. (I'd really recommend fight sports/ martial arts) They'll boost your self confidence in no time.
Well yeaah I don't really think you have good chances with that chick. Mainly because of your atittude! If you don't have any faith that you're ever going to meet up or anything, then why are you wasting your time on her? But if you're serious about you and her then just go for it.
Anyway I hope I helped you out some, good luck dude