It wasn't until about two years later until I would have several days without cravings.

10 years later, I get cravings maybe once every few months and they are easy to let go of. Two days ago I got into a Lyft and someone dropped a pack of cigarettes in the back seat. The temptation was moderate to take them.

I think in part the brain hardwires to confuse nicotine as a type of food. Do not eat for two days, and that is what a smoker feels like for the first 2 weeks. Do not eat fir a day and that is what the first 3 months felt like (all the time, constantly). Your mind is telling you that you will literally die if you don't resolve the urge.

I think this is why relapse is so high for nicotine. You have to be consistently strong every time for months to almost be hone free. During that 7 years I had relapses usually after days, a few times I made it a week or two, once I went 3 months, and had gone 6 months twice as well before relapse.

FWIW, a person just has to keep trying. I admitted that 1) I deeply loved smoking. It is amazing. 2) there is no such thing as one last cigarette. Relapse would likely occur, and when that happens, my cessation efforts would continue.