@notmyself - I quite a 20-cigarette a day habit over 20 years ago and am so glad I did. My biggest motivation was I didn't want to develop smoker's wrinkles! I read an excellent book about quitting smoking which said to find your gut reason for why you want to quit, no matter how trivial, and avoiding those wrinkles was more important to me than saving my health
(crazy, I know). I can't remember the name of the book but it was excellent. If I find it I'll post it.
One important thing I learned through all my attempts to quit smoking was that the hardest part was psychological. There is a very real physical addiction no doubt, but making up your mind to quit was essential to being able to do it, and deceptively difficult. I read a story about Yul Brynner once - he smoked a lot, 2 or 3 packs a day, and always thought it was too hard to quit. And then the day he was diagnosed with lung cancer, he quit that day, and realized he could have quit at any time.
Also, Nicorette gum helped a lot with cravings. Yes, you do get used to the gum but it was easier to taper off the gum than cigarettes.
I don't have the early morning congestion I used to, and I used to get bronchitis once a year which I don't any more, I don't smell like cigarettes and my clothes don't either (I think most smokers don't realize how much they smell, I didn't) I know it's been beneficial overall for my health, I can't imagine what shape I'd be in now if I had never quit.