I quit about 10 years ago, I know how hard it is. You have to have the mindset of an alcoholic. You can never pick up another one. Not even one. Or it is all over. Try sucking on Werthers Originals. They worked for me. Something about the flavor and smoothness of those candies did the trick. I popped one in my mouth every time I needed a cigarette. But you have to do it because you want to, not because you have to. And starting right this minute tell everyone, including yourself you are an ex-smoker. Do not tell yourself you are trying to quit, but that you have quit. If the urge to smoke starts in tell yourself I don't want to because I am not a smoker anymore. Keep trying and don't give up. You can do it.