How can one get rid of smoking, knowing its prohibition and that it may be a cause of Allah's displeasure?

Abandoning sin requires several things, including: sincere intention and a true desire, for whoever is sincere with Allah, He will help him. And recalling the greatness of the One who was disobeyed, which is Allah, the Almighty. And remembering the evil consequences of sin in this world and the Hereafter, for smoking is a slow suicide and causes diseases, and a person will be questioned on the Day of Resurrection about squandering himself and his money.