I agree with Earfetish here.
I used to smoke probably 10-15 monday through friday, and 10-15 on a saturday night for the best part of a year.
Then one day, totally out of the blue, i stopped. No problems or anything. Sure i wanted a cigarette, but like Earfetish said, dont buy 'em and your good to go. Keep yourself busy, and you'll get by just fine.
I stopped smoking just over two months ago now, and haven't touched a cigarette since.
Sure i want to, and being honest i probably will within less than a year.
If you need to quit though, you can. Anyone who says you can't is simply talking bullshit and honestly just not trying hard enough/at all.