I quitted around 7 months ago, really aint counting now that after a good couple of months i don´t even recall my last cig.
I was one of those "i would fucking die if i have to quit smoking, even if the prices raises, i will keep puffin´!", one of those die-hard smokers, up to 30 cigs a day, 50 on the weekends.
One day out of the blue, i decided that this wasnt for me. Had a horrible, depressive day and the nicotine was only making it worst, plus the cough and the chest pain and that bronchitis that was never going away. So, i smoked my last two, and i quitted cold turkey.
The first week was a nightmare, i must say. I got me a stress ball, and i invented a little game with it: bounced it to one of my walls (i live in a sort of loft, so i have high walls) and counted how many times i could catch it without dropping it; that as an example on how you just need to do something else, even if is as stupid as that, to take your mind of the cigarrette. Had all that "time distortion" thingy and all the widthraw symptoms you can imagine, but week after week they were getting lighter, as i started to feel so much better and i broke the habits (the cig after a meal, for example). My health did a 180 degrees turn, both physically and mentally. My stress and anxiety levels dropped, my sleep improved, and my lungs were clearing and healing.
I had this webpage bookmarked for weeks, i helped me a lot:
http://www.whyquit.com/ . I don´t agree with them in things like "one more cig and you are back on the habit" and such. Everyone is different, personally, i smoked again two times since then.. once i had like three cigs in a row and felt completely sick and had to throw up plus endure a horrible headache and another night that i tried to smoke one but i just couldnt swallow the puff, it was like i lost the ability to smoke and it didnt felt natural at all.
Well, this is my experience, in fact, writing this gives me a really nice cig craving.. but when i see how great i feel without smoking, is just a trick of the trade and nothing else. Punks never quit, but this time, i am glad i did : )