This is the best thing you could ever do for your self. I kicked a 2 pack/day habit 17 years ago and you cannot believe the difference it makes in your life. At 1 week you don't wake up hacking out a lung anymore, you don't have to go outside to smoke, you won't be out of breath after 3 back to back track sessions (god I envy you for that)
Seriously Chris, stick with it, the pain comes in 2's, 2 hours, 2 days, 2 weeks, 2 months and when you make 2 years your are absolutly home free. If you ever need any support of anykind call 847-254-2845 me, PM me, email me, stop by my pit, anything.
Big step you will never regret.