I quit cold turkey 6 years ago. People can turn their nose up at me for ever having smoked "ooooh, I would never do anything like that

" but quitting has been one of my proudest accomplishments. Not easy. But I just stopped one day (it was a Monday in late April, 9:15 pm

) and never started again. What kept me going was knowing that it was a battle and I was NOT going to admit defeat. Something just got me really determined. Today what keeps me from going back is knowing that I never want to go through quitting again!
Today I am extremely healthy. I jog and do other aerobic exercise
and have endurance and stamina like I never thought I'd have. I almost never get sick. Maybe just a stuffy nose for a few days here and there. I haven't had a cough-cold since smoking. But that's probably just coincidence. But there's so much more than the breathing thing. I used to have sensitive stomach issues (like IBS) that are gone now. My gums are not sensitive and never bleed. Smoking does damage to your entire body, not just your lungs, by depriving your cells of oxygen.
I know the physical withdrawal was an issue, but I don't remember details. That didn't go on for too long, but I remember that I had lots and lots of TIME on my hands. If I smoked 10 cigs a day, that was probably about an hour of every day that I spent smoking.
One thing my friend and I were talking about is that after you quit, if you feel like you "want" a smoke, you have to remember that you really don't. If you were to cave and have one, you'd practically cough up a lung. What you "want" is the feeling of relief you'd get when you'd fulfill your craving. After a certain amount of time, you just won't get that feeling of relief from a smoke anymore and you need to keep that in mind. But I think that's why a lot of people return to the habit when they are under stress - they are seeking that sense of relief. Understanding these things is important when quitting or maintaining a quit.
Please give it a try. You CAN NOT be sorry. Look at it as a challenge for yourself. Keep in touch, people here can help.