Two questions: When is your lease up? When is your neighbor’s lease up? If the neighbor is going to be there a long time, I’d take the opportunity to GTFO, pronto. This kind of situation is not one that will go away, I dealt with a similar problem in college. Anything you do to try to piss off the problem tenant will just piss off all the other neighbors too, and then what? You aren’t going to get the girl to quiet down. You can either move away from the problem or wait for the problem to move away.
BTW, if I am correct, you are paying a pretty good chunk of money to live in this place. I’d be raising hell with the landlord and trying to get my security deposit back.