RockyRoad, I smoked chronically since middle school. Until about 10 years I smoked every night and managed to go to work every day. Marijuana ruled my life. At first it was a way to self medicate, then after I was finally diagnosed it was habit.
Marijuana is indeed habit forming and psychologically addictive, but not physically addictive. The first week you are off it is the worst. After that is easier but the first week sucks.
I smoked a bit over (30) thirty years. The best of luck to you.