If you don't mind me asking, did you pick up weed after you quit alcohol, or were you smoking before that? I ask because I am an alcoholic as well, and quit drinking 6 years ago, but kept smoking weed the whole time. I can say, from my experience, that there is a big difference between being totally sober and replacing one drug for another, no matter how benign it may seem.
I'm not trying to pry, btw, nor seem condescending in any way! Just curious.
You_Rock_