I believe I counted 8 times I quit smoking cigarettes before I did in fact really quit, finally, really, really quit.  Twice I quit for 3 years yet still went back to them.  But I learned a couple of things along the way.......
I learned that while others could smoke and not have physical symptoms, I couldn't.  I had headaches, sinus complications, sore throats, teeth and chest aches.  I've experienced stomach problems and especially those troublesome bleeding hemorrhoids.  From top to bottom I suffered, yet never did I find a cigarette I liked, that 'tasted' goodand I tried them all.  Short ones, long ones..... mentholated and perfumed ones, I tried them all and never found a one that 'tasted' good, 'like a cigarette should'.
I learned that since I quit I could smoke one cigarette anytime and never have a memory of it, nor have any desire for another.  But if I smoked two, then I have a memory, which will soon pop into mind, again and again, suggesting that I have another.  Another thing I learned is that if I would conduct what I call a 'smoke out", that is if I start smoking, one right after another, and don't stop, just continue one after another until I physically choked up, and could not smoke another, and then say "I quit", and mean it, all that nicotine and smoke in my body could carry me through the first couple of days without getting any cravings.  And that did make a difference to me, it really worked, and that's been countless years ago, maybe 32 years, since 1985 or so.  But I was fortunate, as I didn't start until I was 30 years old, and I've made it to 79 so far.......  My second wife started smoking at 13 and died of lung cancer at 65.  A good friend, who started early, just informed me that at 64 he has been told by his doctor that he now has emphysema.
Nothing seems quite so addictive as cigarettes, especially if you were addicted as I was, while in the womb.  But you can quit, and you will quit if you want to..... It's worth it!
Incidentally, I keep a copy of the obituary of R.J. Reynolds, 3rd, Tobacco Heir, close at hand, so allow me to inform you of what happened to the folks who are 'pushing' tobacco on you.  Richard J. died of emphysema and congestive heart failure at age 60..... His father, Richard J. Reynolds the 2nd, also died of emphysema, in 1964 at the age of 58.  That's right, these were the folks who were suggesting that you pay money to ensure an early dead by using their product, tobacco......  How bizarre!