See the other quittin' posts, there's lots of great help there.
AND you are most definitely NOT at square one, sweetie.
BUT, addiction is addiction is addiction.
It is still hard for me to not smoke, over 10 years since I quit. Many months ago, not in control of all my faculties, I tried a cigarette. I was hoping against hope that it would taste awful and make me sick. It didn't, and I have to watch carefully that I don't do it again.
But stick to it, my friend. It's worth it, you know it is. I'd give almost anything if the people I love who still smoke would quit. If they only knew HOW MUCH I would give.....
PM, call, write, email if you need to. Don't pick up a cigarette.