One thing that can assist you to quit smoking better is to take a personal analysis of your state of smoking.
Firstly, what you can do is to write down the reasons of why you are smoking. It may be due to a lot of reasons such as peer pressure, stress, loneliness, social reasons and so on.
Next thing you need to do is to write down the reasons of why you want to quit smoking. It could be reasons due to health, family, finance, diseases, loved ones and so on.
For the first category of reasons you have written down, go through them and find solutions to why you want to smoke.
For the second category of reasons of why you want to quit, put up the reasons in your house where you can see them visibly such as writing them down on a piece of paper sticking them on your bathroom mirror.