akhliber: I quit smoking about 5 years ago (after smoking for almost 20) and the hardest part for me wasn't needing a nicotine fix, it was missing the act itself. It had become a form of fidgeting for me, something to do with my hands. Every time I'd try to quit, it would seem like I'd make it past the nicotine withdrawal, only to cave in a couple weeks or months later because I
just missed smoking. I had a persistent cough, and I have heavy asthma myself, so I really had to quit. Oddly enough, the thing that ended up being the most effective for me was to cut straws to cigarette length and stuff a bit of cotton in one end. This gave it a bit of weight, and made it feel much like a cigarette when I'd go through the motions of "taking a drag." Whenever I had a cigarette craving, I'd make myself "pretend to smoke" with a cotton-stuffed straw for ten minutes first. It felt stupid as shit, but I came to realize it was the act I was needing, and my craving for a smoke would rarely survive long enough for me to cave in a real one afterwards.
This clearly won't work for everyone, and probably sounds completely ridiculous, but it really helped.
Another thing I'll say, my asthma was nasty most of my life, and had gotten really bad again before I quit. By the time I had made it a year (which isn't easy by any means) I started
really feeling a dramatic improvement in my breathing. My persistent cough slowed much earlier than that, but by a year's time, I was honestly blown away.
Last bit of input: work out on paper just how much you smoke a day, and how much you spend daily/weekly on cigarettes. When you quit, keep the money you would have been spending on smokes in a jar, and let it collect. Set yourself a goal (a week, a month, whatever feels like a real challenge but not unattainable) and, if you make it as long as you set out to without a smoke, empty out the jar, count your winnings and either pay off a bill that's been hanging over your head or treat yourself to some video games or something nice. Actually seeing how much money is going out the door for a bad habit had a real impact on me. I could easily do the math in my head, and knew for years I was throwing a lot of money away, but finding ways to make that more concrete and real in my life really helped change my perspective as well.
Don't give up! :)
I know that feeling, ive started chewing my nails which is no better lol.