I quit for the third time about 20 years ago. I took the pills, I chewed the gum and stayed busy. I chewed the gum for several months. Then, I switched to sugarless gum for another couple of years. The one thing I had to finally get is that you can never have just one cigarette. If you do, you're hooked again. It might take a few weeks to start smoking again, but once you have one, you'll have another. Then, you'll have another.
That's a lesson I learned the hard way. Good luck.
bkay