I quit smoking four times, IIRC. The first week was always the shitty part, and then it would get dramatically easier. Three of the times I started back up because my ex-wife would secretly start smoking, get tired of hiding it, and offer me cigarettes ('just one, as a treat'). The last time I quit we were in the process of separating prior to divorce, and so that shit didn't happen. That was a little over ten years ago now.

This last time I quit because I was waking up every morning coughing. I had that nasty dark-yellow smokers' phlegm that I'd cough up, and I'd have that first cigarette along with my cup of coffee. When I realized the direction my health was going, and that no amount of cardio and weight training was going to fix it, that's when I decided to quit.

Each time I quit was cold turkey, no aids. The times I tried cutting back, using gum, etc., all failed miserably. Vaping wasn't a thing at the time.

I still love the smell of cigarettes, pipes, and cigars. That's never going to stop. But it's pretty easy to resist now.