What are the necessary steps and procedures for quitting smoking with a sincere intention for the sake of Allah the Almighty?

It is necessary to be convinced that smoking is forbidden and that a smoker is disobedient to Allah. Then, one must hasten to sincere repentance by abandoning the sin, regretting what has passed, and resolving not to return to it in the future. This requires striving against one's self, staying away from places where smokers gather and their company, and engaging in permissible and beneficial sports and hobbies.