I use to smoke regularly during college, but I ended up quitting just by cutting down and not having a routine. WHen I smoked during college, the routine was one in the morning, one while walking to class, one after class, one after each meal, and one before I go to sleep. Routines make your body crave it more. But eventually, I just cut the routines, basically it went in reverse for me. I began as a "social smoker" only when I drink, then it became only when I'm stressed, and once you buy your own packs, you're screwed.
I say try to cut the routines first, then work in backwards order of how you started. I don't know if that made sense, but GL to you.