In order to quit smoking, you must make the final commitment.
All the aids and tips and hints will do no good until you simply make the choice to stop. As with any addiction, you need to realize the fact that you have a problem first. Once you get to that point you will be able to quit. Willpower is also important once you have made the decision to quit. When you give up smoking, having the will to not smoke again will go further for you than any other method available.