I used to feel this way all the time.. I WAS this way all the time when I was a little younger. I'm still a teenager but I am at the end of it now and my teen years, especially 13-17 were pretty bad as far as temper goes. A lot of that was caused by home abuse, bullying, and things like that. I know that you've gone through some of that as well, so I really relate to what you're going through. I can't offer much help other than I had it, and I am A LOT better now. You're getting better too and I think you'll turn out like me and the temper and mood swings will ease a bunch. It won't be right away, however slowly but surely I think you'll get out of it. Just something a lot of us go through. Try to stay patient and direct your anger on things other than other people and you'll be OK. Hopefully everyone you live with will understand what you've been through and that this is just a reaction from it right now and that you can't help it.