How To quit somking

First Of all, somking cigarette is something unhealthy and it cost you some disease. I quit the cigarette this week. In the first I go to see a doctor and he give me a plan how to quit. he told me that I cant quit in one day. He told me to smoke a packet in a week then somke a half packet next week. and then I need to stay with a smokers and I dont somke with them. in the same time I need to go to the gym and to start your normal life without cigarette. I try this plan and it works with me and now I am quitting.