Its all in your mind. I had several health problems associated with smoking and I still couldn't quit.. For me I had to basically reprogram my mind to react differently to situations that made me want to smoke. Like after meals, driving, stress, socializing and the hardest one was drinking. Ya not smoking is hard but suffering from the side effects is harder. Now I don't even trip off smoking and it was one of the best things ive done for myself in a long time.