Congrats on one of the best decisions of your life, David!
Great advice above, so I won't repeat it. But, yeah, posting roll is essential to KTC membership. Exchange digits and get to know your group mates - because accountability is so important. I'm glad high ethical standards are important to you - because making a promise is only meaningful if you are a man of your word.
I would recommend that you learn absolutely everything you can about this addiction. You are nicotine addict. And the thing is, you will be one for the rest of your life. Accept that nicotine can never enter your body again. Not even once. It is just how addiction works. That might sound scary now - but I promise in due time it will no longer be a mental or emotional challenge. Nicotine is crafty because it hides behind its delivery systems - it actually makes you believe you love dipping or smoking or vaping, when, in fact, none of us would partake of ANY of it if it weren't for the nicotine. Once you see nicotine addiction for what it really is and what it has been doing to your brain and your body, and once you learn to hate this substance with every fiber of your being, then taking it off the table as an option will become much, much, much easier.
In the meantime, keep posting daily and keep honoring those promises daily, one day at a time - you've got this.
Proud to be quit with you.