Welcome to the best decision (healthwise, and mentally) you have ever made.
Now be warned. This addiction will not go quietly into the night. You need to read as much as you can about it and arm yourself with knowledge and integrity. This place works (assuming you have integrity), because once you place your name on the roll, you're giving your word that you will not use nicotine in any form that day. Then you live up to your promise. Then you repeat. Along the way, you build an external family of like-minded quitters who, properly leveraged, will steel your resolve in the trying moments that will come. THAT WILL COME. Recognize this now, and prepare for them.
Also know that quitting nicotine, as far as I can tell from EXTENSIVE web searches I've completed over the years, has NEVER actually killed anyone. If the countless thousands of quitters here can manage to gut through the craves that will happen, you can too. There is ABSOLUTELY ZERO excuse to EVER have a dip again, or a cigar, or a cigarette, or any other form of nicotine, once you've decided to quit.
Dive in, drink deep, and get to quitting. It is going to absolutely suck for awhile, then that suck will finally abate. Meanwhile, you're on your way to freedom! Welcome!