^ Yes, pride is your friend
I smoked for 12yrs or so, packet a day. I'd wake up in the middle of the night, smoke, go back to sleep. Very addicted. So heres some tips.
My rule: When quitting I can do whatever the fuck i like except put a smoke in my mouth and light it. Keep it simple. I can say fuckit im not going to work, i can get shitfaced in the middle of the week, i can order takeaway, i can bootycall that girl I know I shouldnt, shirk responsibility, get creatively decadent ... willpower is only to be spent on not lighting a smoke.
Mentally: I quit because i choose to - end of story. There are no reasons as logic is weak and can be argued against. Believe me, you will sit there and hammer your own defense trying to justify lighting a smoke. Without a reason there is nothing to pry against.
Defenses: When my own mind (The junky voice) says: "have a smoke" that is not me, its my adversary, the quicker i build an automatic "NO" reply the easier things will get ... do NOT negotiate, thats a trap, dont even go there. That automatic reply is your savior, hone it to a razors edge - fast, sharp and immediate.
Other stuff that I did: BREATHE and relax - cravings will hit you for around 3 minutes then pass, eat mints, listerine strips, nuts, toothpicks. I would pop a mint, go outside and chew a toothpick for 3 minutes and imagine as hard as I could that it was a smoke, thats fine, as long as it isnt one. I also gave myself reminders and rewards daily
Ive heard 'quit buddies' work - but mine fucking piked after a week. I just used it as fuel - 'Im better than you' (Being 'decadent quitting maddog' im allowed to think whatever i feel like).
It was a lot of work, but in a sick kind of way i actually really enjoyed the experience. Amazing dreams, insanely creative, really feeling alive and in the moment.
Good luck :D