Welcome to SR, SeriousKarma! You'll find a lot of support here.
(((HUGS))) to you for what you have been through. I know it isn't easy, but it sounds like you have a very good attitude and know that you cannot save him; you can only save yourself.
We have a wonderful Friends and Family forum here that you might be interested in. Here's a couple of links...
Friends and Family of Substance Abusers - SoberRecovery : Alcoholism Drug Addiction Help and Information Friends and Family of Alcoholics - SoberRecovery : Alcoholism Drug Addiction Help and Information
Hope you'll stick around and allow us to support you. Your new life begins NOW!