I'm the mother of an addict and I've been to several Al-anon and AA meetings, but I've found my greatest source of support right here on SR. I've learned so much!
The greatest lesson was how to construct my personal boundaries then stick to them...then my 19 yr old addict-son ('AS') was offered a place to live with me as long as he respected the boundaries. He violated them within a few days and I gave him one hour to move out of my house. That was back in May 2010. He is living on his own and supporting himself now. Whether he does drugs are not is none of my business. We have a great relationship now and although I worry about him sometimes I don't lose any sleep and I don't cripple myself with stress anymore.
I learned from the good people here that there is nothing to be gained if I allow him to drag me down with him. If I am to be any good at all--to ANYONE--I have to take care of myself first and always.