D.M.
Try the book 1-2-3 Magic. It really works. The key here is to not get mad. If you're yelling and screaming she's getting a reaction out of you. That makes her more in control. You count her and be firm 1. (if she doesn't stop count again, no arguing or coaxing or explaining) 2. and if she does it again. 3 that's it you're in time out. You put here there until she calms down, and then 1 minute for every year of her age. If she tears up her room, oh well, she's got to clean it up. You don't help and you don't yell.
I'd get the book, it really is worth it.