I wouldn’t be the guy to ask. I’ve quit three times over the years and stayed stopped for varying lengths of time, anywhere from six months to a year each time, and then gone back. I’ve been clean and sober for many years, having kicked and successfully remained abstinent from everything from heroin to alcohol to crack cocaine. Tobacco, in my experience, is the hardest one of all. Maybe because its immediate effects aren’t so… immediate. I dunno, man, it’s a bitch.
The bottom line, however is that once one makes a decision to quit something, whatever it is, 98% of the ”quitting” is already done. The rest is just a matter of putting a program of action into effect, then following through with it one day at a time. That being said, there is a wealth of ”quit smoking” methods and support available in bookstores and on the internet. In my experience, it’s not so much what you do, but the simple fact that you’ve decided to do SOMETHING about a habit that’s become problematic that makes the real difference. Once you decide to do something, whatever you do will surely work. That’s because it’s the decision that’s the most important part.