I quit for 8 years then due to some stress and evidently the urge to have a smoke, I started again about 3 yrs ago, I have quit again just over a month ago for the second time in my life.Its all or nothing, thats my motto.
Try it! Instead of any drugs,.. try more veggies and fruits or walking or jogging or swimming or something,.... anything to change your lifestyle so you do not want or need a smoke... Oh well, just some insight from a quitter

GOOD LUCK ... YOU CAN DO IT IF I DID!!!!!!!!