PLEASE READ!! im so worried about my cousin!?

Sorry for the situation that you're currently in. It can be really hard to see someone you care about have these troubles. I honestly don't know what's wrong with your cousin, it's obvious she has some anger issues, quite serious in fact. She needs to see a psychiatrist to properly evaluate her, hopefully they'll do that at the hospital. It's a hard thing that you had to do, but it was out of love, remember that. Chemical imbalance in the brain can cause a person to be totally different, and there are some treatments to help with that. I really hope your cousin gets the help she needs, and I hope you're okay too :)