Oh bless ya.
I ran a 5km race on Sunday and bearing in mind i've been smoking for the last 18 years (fuck) i completed it in 32 mins and 15 seconds and i didn't prepare for it and i smoked 3 hours before the race.
Its only since Sunday that i don't want to smoke but am doing so out of habit. I've cut down considerably though. Cutting down is better than 8 a day (never been a heavy smoker). It's a start.
When you are ready you'll find something to assist you. I wish you luck.