I've been a 3+ pack a day smoker for 35+ years. Haven't had a smoke for 45 hours.

I always treated any vise I was interested in like an enemy when I wanted to quit. Make it your enemy, if you walk into a room and someone is in there you don’t like, just turn around and walk out. When I thought of stuff that way, I immediately didn’t want any part of it. I quit everything like that, cold turkey. Never really had the desire to start up again as long as I thought that way. After awhile, I just forgot about it all together.