Congrats!! I know what you mean, smoking is a bich!! I can relate to your story. I quit like 5 years ago in the spring. How I did it: one morning, I actually didn't want a cig. I was just observing how long I could go without one. So, the first day wasn't THAT bad. However, for the next two weeks I was pretty f**ked up. I was constantly eating or hungry and very irritable. Nah, actually I was psycho, agro, violent; those bastard cigarettes really mess with you. Anyway, I had not smoked for like 6 months. Then I decided to go back to college. I started engaging in "trigger" behaviors: stressed out from school(provided me with an excuse), hanging out a bars (a big no-no with me, it's hard to drink without wanting tobacco), being around other smokers, etc. Then it happened, I bummed a smoke off someone. This was the beginning of the end. within a week I had resumed my habit of a pack a day. That was five years ago. I gotta hand it to you, I'm kinda scared to try and quit AGAIN. The only advice I can offer is to avoid "triggers" (situations that make you want to smoke) as much as you can, especially for the first week or so. And 2nd, NO CHEATING!! At least that was my downfall.
Best of luck to you.
I hope you'll beat it...