I don't know how or why it happened but around five or six months sober I just lost the desire to drink. It just went away. I am not in AA and did not work the steps when I was in it, but my urge to drink just vanished.
I attibute my success to two things: my friends' support and advice here, and my weekly sessions with my addiction counselor. Also to my dogs, who are my life. I wanted to be sober for them.
