I also started dipping at 14, and continued for 34 years. I can't count how many partially full cans I tossed beforehand I found this place. The important thing to recognize is that you haven't ever really been quit before, just stopped. The good news is that you can truly become a quitter here.
It's easy to lie and to justify to yourself. It's quite something different to give your word to another person, or better yet a group of people, and then break. That's why posting roll here is so key, early on especially. It provides an anchor for your daily quit.
Get phone numbers of a number of people in your quit group. Get others too, but learn to rely on your quit group. This is Day 409 for me, and I have a couple of guys who have encouraged me every day along the way, with only a few missed days that I think I can count on one hand.
Quitting is a bitch, I mean it really fucking sucks. I've found it to be far more difficult that other shit I quit when I went through drug rehab almost 23 years ago. But everyone here is or has been where you are right now. Don't lose sight of that, and use the collective experience as a resource. I thought about chewing several times a day, every single day, until some time after I hit a year back on January 11. Then at some point - hell, I don't even know exactly when - that stopped. I was sitting right here at my desk and suddenly realized that I hadn't thought about dipping at all for at least a couple days. Don't take that to mean that I think I'm cured - there is no cure for addiction. Just take is for what it is - proof that it does get better.
Here are my digits, if there is ever anything I can do to help you. 832 five four seven 7111.