I gave up at christmas 1997 after many unsuccessful attempts over the years with cold turkey, chewing gums,patches,you name it,I tried the lot.
The reason I succeeded that time was because I had a dose of real flu (proper flu not a cold) and for the first few critical days I could not have smoked if I wanted to as I was so rough.The doctor was even called out late on Christmas eve to see me, stinking of drink too he was, my wife told me afterwards as he was driving away.
When I started to recover around ten days later I decided to carry on with the no smoking and the cravings did come on a bit then.However not as bad as they would have done the first day or two which probably would have made me fail again,so I have the flu to thank.
Even now I get the occasional craving,but only for a moment or two and they soon go.They will occur for the rest of my life I have been told by other ex smokers although only if you smoked for a long time like I did before giving up and as the years go by the number of times decreases. I now have around four cravings a year.
One other thing I found that lasted a long time was if I was working on a task or something,I would suddenly think to myself,"I must stop for a fag in a minute" and then think,"hang on,I dont smoke"...Funny that,but it happened alot.
Anyway,that`s my story and I hope you succeed too.