That's a great motto and I believe in it too...I also harp on that with my kids all the time.....but....to try to readjust your brain chemistry with just your mind is a bit difficult. There are distinct physical changes that occur on the receptor level when someone uses nicotine, not sure willpower can reverse those effects.
This drug actually occupies the same receptor as nicotine does but does not produce the same effect as nicotine, and it's not displaced by nicotine, so when on it, people don't get the "good stuff" that nicotine produces...even if they smoke...the desire to smoke then decreases and eventually they quit altogether since smoking doesn't do anything for them anymore.