If you really want to quit, you will. This site will help you stay quit. It will suck. You will live in an irritable fog. But fight through it...embrace the suck. The pain is your body taking its life back.
Nic doesn't give up easy. But there are no short-cuts...cold turkey is the way. I didn't take Chantix, so I don't have personal experience, but it doesn't appear to work. Just jump in with body, mind and spirit and live nic free.
Even when it is out of your sytem, you will have craves and dip dreams. So try to have fun with it...like I said, embrace the suck!!!