So what do you do with a pissed off teenager?

Anyone with advice on this topic is welcome to send me info. Crystal really hates her new school. She is now hit the rebelling point. She comes how, stalks into her room, slams the door, and stays there the rest of the night. Any attempts to communicate with her are met with either snarls or tear and neither are understandable. Both are accompanied with a shove out the door. Anyone have any clues on what to do?