Forgot to say this:
Recovery - with the steps, therapy, good meetings, reading books, whatever - helps you shield yourself from any c*** that is currently going on. You can maintain your own sanity and not let the insanity of your family shake you up. Lots of teens don't have much of a choice about leaving home so they work at setting up boundaries and detaching from the addicted parents.
Another option for meetings are the online groups (see the meetings page of the alanon web site). From what I hear, and experienced, the quality varies widely. The last meeting I logged onto was just a lot of ranting and swearing.
Happy Spring!