I tried every quit product out there and the only thing that stuck was cold turkey (I'm coming up on my 17 month anniversary of being nicotine free). Don't believe all the hype about how horrible a cold turkey quit is; I found it much easier than keeping myself in a constant state of withdrawal with nicotine replacement products and the withdrawal symptoms were very mild.
If you convince yourself that quitting will be horrible, it will be.
Consider also that even with the nicotine replacements, you either have to stay addicted to nicotine and keep using the replacements (just as many $$ as cigarettes) or face withdrawal sometime; I found it better for me to face withdrawal sooner rather than later and make a clean break from my addiction.

Whatever you do, if one method isn't successful, keep trying until you find something that works. I've read that it takes an average of 6 quit attempts before a smoker is successful at quitting.