Children of Addicted Parents and People

Since i wrote in the just joined section things have gotten a lot worse my dad is has gone from drinking carling to strongbow and me and my mum both know this is a bad sign, he is drinking on average about 8 - 12 can's a night he is even taking days off work so he can drink. When he drinks he gets really abusive towards anyone and everyone mainly me and my mum, whilst im writting this he is calling my mum all the names under the sun telling her is leaving, i have tried to intervene but had nothing but abuse off him! him drinking is putting a huge strain on my relationship because as soon as i see him with a drink i flip into a different person i shout and scream at my partner which i know is wrong but i cant help it. He is doing everything he can to help but he just doesnt understand what its like. I have tried talking to one of my closest friends about it but this is the one thing she cant help with because she has no idea what to do or say. I really dont like the person i turn into when he drinks but i just cant help it. It feels like a switch has been flicked and there is nothing i can do.