I wish you the best. I am 47 and started smoking right after High School when I joined the work force. Sure I quit a couple times, used the gum, hypnosis, chantix but always seemed to start back up again. Then one day not 5 minutes after a smoke I suffered a heart attack. I haven't had a smoke since then and that was on 3 March this year. I still tend to reach for the lighter in my pocket that isn't there any longer but I know that it would only take one and I'd be smokin a pack a day within a month. Unfortunately this is one of those things that you need to consciously be working at doing all the time.
Good luck to you and stay strong.