I smoked everyday for 20 years. I did not quit until it became extremely inconvenient .  I had surgery and had to spend a week in the hospital (a place that does not allow smoking), I tried to quit many times before that but after a week of no smokes it was easy and did not crave one at all. I did substitute it with vaping for awhile.

If I had to quit smoking again I would take at least a week off, get rid of all cigs,  take a drink of water and go to bed every time i craved one. I would try to sleep as much as possible and avoid anyone that smokes.

One more thing that I thought about while I was quitting. I kept thinking each day that went by that was 1 day I made it and smoking again would take that day from me. It felt good smelling things i haven't smelled in years, it felt good not hacking up phlegm in the shower, it felt good being able to jog like I used to. Also. I started taking my dogs for longer walks along trails and the woods in the morning never smelled and felt so good.

1 week is all it took to feel good again.