Quit three years ago after more than 50 years of it. Tried everything until I came up with my own scheme. First, quit smoking in the house and car. Then, quit smoking for convenience (that after breakfast coffee cigarette) and only smoked when I really needed to. That cut my smoking 50 percent. Then, I began to smoke only half a cigarette and butt it. Next time, I would pick up that butt and finish it. That cut smoking 50 percent. After about two months of that, I began to smoke only a third of a cigarette. Did that for about a month until Christmas Eve 2014 when I said that's it. And it was. I know that just like an alcoholic, I'll be back to the habit if I smoke just one cigarette.
As with Toes, I did a lot of damage to my lungs, especially my left lung. I suspect I have COPD and am having tests down later this fall. The sooner you get off the damned things, the better - and longer - your life will be.