I tried quiting few times. It should be a strong principal to never have even one sigaret or it will start again for sure. I haven't smoked for four years. The biggest reward is the feeling of being proud of yourself. I used to smoke half pack a day. But I didn't have any phisical withdrowal problems. But it was and is emotional nightmare. Sigarett break was the support that no friend or therapist could give me. I still cannot find a good substitute for a sigarett. Have to work on myself... The only thing stops from starting smoking again is that I don't want to japordise my health. I know how hard it is to quit. So tap into your sosial support system. ... and it's worth it in the end.