I'd agree with others about it becoming like sobriety autopilot after awhile; just my state of being, rather than explicitly centered on "not drinking." My drinking was almost ritualized. Going to get the exact same type and amount of booze, starting at the same time, sitting in the same place, etc., and it took me a few months to be comfortable doing whatever I happened to be doing without thinking "I would probably have been drinking right now" and things like that.
Drinking took so much time and effort. When I suddenly had all that time and effort to give to other things, it took some getting used to.