The key is to remove your desire to smoke. Allen carr's easy way to quit smoking explains it very well.
Also I realised that the withdawral is nothing more than a very mild version of a hangover. And if you can cope with a hangover for a couple of days without having a drink to delay the hangover then you can quit smoking for good.
Also count how many days you are a non smoker, rather then how many days it's been since your last smoke. That way your last experience with smoking is not in the spotlight, but rather there is no aim in terms of time. You stopped smoking, you are a now a non smoker. Do you want to become a smoker again? Then stop counting the days and hours and realise that the numbers do noty matter at all. What matters is: how much you are enjoying yourself at this perticular moment and the next.
I firmly believe that smoking does not improve the quality of a moment and certainly has no positive effect on the quality of life. If anything it takes away your courage to deal with things because you are always running away to feed a relatively weak craving.
I can only celebrate the fact that I am free to do what I want when I want without having to carry around a supply of nicotine with me and without feeling like a socially acceptable junkie.