2manyears is right on target! Don't believe for one second that his addiction, or continued addiction is your fault. My older brother is a recovering addict, and before his recovery, at 22, I enabled him for over a year - but he eventually fell into a downward spiral and got a DUI. I did what I thought I had to do because I didn't know any better. So did you. Be kind to yourself and remember the three C's! You didn't cause it, you can't cure it and you can't control it.