You're doing everything right. Cold Turkey is the only way to do it embrace The Suck. It does get better.
You'll get a bunch advice here but the 2 best pieces are:
1. Post roll with July every day as soon as you get up. Don't take a piss, don't scratch your nuts. Post roll first. Then you've made your promise can't trip and fall and have a dip pop in your lip on your way to the shitter.
2. Get involved. Especially this early, go to the chat get to know the guys. Get to know the guys in your group. You're all going to be raging shit heads for awhile, take it out on each other rather than your family.
3. Give yourself permission to put anything you want or crave into your piehole as long as it's not NICOTINE. I went through swedish fish, jaw breakers, jerky. I still use fake dip, especially on the golf course. It just helps it won't kill you.
4. Drink a fuck ton of water lay off the booze, unless you're at home have absolutely ZERO access to dip or cigarettes.
Ok, there's more than 2......