Okay so I managed to quit smoking, some while ago now. Cold turkey worked.
How have others managed to do it? (assuming you have).
Blessings.
I smoked non-filter cigarettes heavily for ten years. Maybe that is the reason I have the health problems I do today. Then I switched over to filter cigarettes. Then I tried cutting back. Cutting back isn't easy to do. You're always craving more nicotine. Finally I did it cold turkey. I let myself smoke for the rest of the day, and that was the end. Didn't even enjoy those last few. I had a weekend relapse several months later, but on Monday, I had quit again, never to start back up. That was in 1986. I have no desire for them now.
One of the major psychological problems I had with quitting cigarettes was the fear I wouldn't be able to find find another way to pass time, once I quit. It turned out to be a non-issue.