Great decision. I'm glad to hear you've done some planning but you also need to know that no matter how much planning you've accomplished you will still go through some difficult times. We all have and it's just a fact of nicotine cessation.
The good news is that you can do this. You power through. Workout, drink lots of water, seeds, gum, read everything on this site. Anything to keep that nasty crap out of your mouth.
I used sunflower seeds, gum, Jolly Ranchers, other candy to get through. Mix it up and you won't have too much trouble. The water helps counteract the salt from seeds.
Check out the "Welcome Center" link, upper right, and then get into you February quit group and post up you Day 2. Yes, yesterday counts as Day 1