Not trying to be negative but when you get to where I assume all of us were at one point, smoking for years and being addicted to nicotine (whether we admit it or not), we are all nicotine addicts.
My last few years as a smoker, I made multiple attempts to quit. Some quits lasted a few days, some a few weeks, but ultimately I kept fooling myself into thinking that one cigarette wouldn't hurt. Everytime I lit back up, it would take me a while to attempt a quit again because the addiction to nicotine was re-awakened.
I now know that I am a nicotine addict and will be until my last day of life. That addiction is dormant now and, over time, has really became something that really didn't tempt me anymore. But I understand now that I CAN NEVER SMOKE AGAIN. If I do, it will re-awaken the addiction and I will be back to where I was on the day I smoked my last cigarette.
I hated hearing this from non-smokers when I smoked but the key to quitting smoking is not smoking. Everytime you light up, it re-awakens the addiction.
You can do this but you have to make smoking NOT an option.