Quitting smoking was the hardest thing I've ever done. I wasn't able to do it cold turkey, tried that technique too many times... unsuccessfully. I ended up using nicotine gum, and only when I was at the point of needing a cigarette so badly a television was about to go flying out the window. Otherwis I carried around a bowl of chewy chocolate to substitute for the smokes. Everybody who quits uses different techniques, if the champix is causing you problems, try something different.