Here`s a great way to quit smoking when all else fails.
Wrap your pack of butts with a sheet of paper,with two rubber bands.....one band going vertically,the other,horizontially.
Now try your best not to smoke,but when you absouelutely have to light up,unwrap the rubber bands and the paper carefully,then write down the time of day or night of the cig,and your reason for smoking it...........ie.,"Just ate dinner,had a cigarette",etc. etc.,.......whatever the reason may be.
Now,re-wrap said pack and put away until your next cigarette.
Of course you should try to increase the time waited between cigs as long as you can.
Over time,if you stick with it,you will have proof on paper that your cigarette consumption is decreasing in a big way without too much witdhdrawl like symptoms.
This method will make you aware of the fact that 80-90 % of the butts you are smoking are strictly out of habit and not needed as bad physically as you thought they might be.
In fact,because of this realization,you will often put the cig back in the pack and tough it out for a longer duration of time without having one.
This worked for me and quitting cigs was tougher than booze or drugs by a longshot.