I quit 4 months ago, and it is wonderful. I can go for a nice 40 mile ride and even on the longest hills, my lungs never hurt, my legs do but that is a good hurt.
I pass MY first major hurdle last weekend. We went to a party at a friends house, there was plenty to drink and a good friend still smoking, even while drinking and smelling second hand smoke, never had the urge to bum one from him.
I am also attempting my first triathlon in August, something I would have never even imagined when I was smoking.
Congrats on quitting and enjoy life after smoking, it really is better.