Congrats on the quit, and smart decision coming to KTC.
I did a similar thing — survived till about Day 70 on my own, stumbled onto KTC and joined. Glad I did because I'm not sure my quit would have made it the last couple weeks without this crew. When I joined, my thought process was similar to how you described yours the first time you stopped: thinking you could quit and eventually things would be fine, life would be easier and you wouldn't even crave it.
I figured by Day 70 I was "really quit" and I was even considering getting a cigar to celebrate my friend's job offer, thinking, "Well it's not dip or cigarettes!" Obviously I know cigars have tobacco and nicotine as well ... I don't know how I even tried justifying that to myself.
My point is: KTC will whip you into shape. Any hesitations you have, any "hopes" or "tries" or "maybes" — they'll knock 'em right out of your addict mouth. We're here to quit, not pussy around and talk about how much we miss putting cancer dirt in our mouths.
PM me if you need anything. I quit with you today, and EDD.