Thirty years in rock and roll, and I don't know much except when it comes to drugs. That is something that everyone who has time in the industry has to come to know and come to grips with. I watched friends of mine get through real problems with heroin, coke, meth, drinking (mostly drinking, its the most popular form of drug abuse), pill, crack. OK, not crack, that seems to be the last stop on the drug train, if you make it to that station, you're not coming back. The ones who did not, or could not work it out, are dead. DEAD, dead. As in, not getting any better ever.
But pot is not like that. I doubt that its making your life a lot worse, but its not helping make it better either. So get help if you think you need it.
But drug addiction is a serious medical issue with tons of overlapping psychological issues, and you need someone who is trained to work through that. Drug abuse is as serious as a heart attack, and if you would not have open heart surgery done by some untrained amature off the street, then I would suggest finding a similar level of professional training for your abuse problem. That seems to work. Of all the people I know, say 30-50, who got off drugs, not one of them did it with AA/NA. Not one. Oh they tried it. It just does not have the same success rate as say, the Betty Ford Clinic.