So, you have no more contact with this horrible twat.

Get a friend with a normal family to foster you and explain your situation to the concerned authorities(being abused and endangered by an alcoholic parent) go live with good people, be good in school and make a life that you can be proud of. Don't look back, if someday you feel capable of it, write her a letter (without giving your address, them crazy bitches are hard to loose, even years later) where you forgive her for all she's done to you, and move on with your life..don't let her break you OP! You are precious and deserve to be loved, and have a chance in life! She is trying to spoil your life out of jealousy because you still have a real chance and she ****** up her own, with alcohol. Take care OP, and know that you never deserved those bad treatments and she had no right to do them..karma will fall hard on her.

What the hell?!

Get a new mother

Why would you be grounded for losing your OWN stuff?