I quite several years ago ... I did it cold turkey with the following help.
Change your environment.
1.Get rid of ALL cigarettes and ashtrays in your home, car, and place of work.
2.Don't let people smoke in your home or car.
3.Use fabric sanitizer on everything in your home, car, work (if possible). Get rid of the "smoker" smell.
Review your past attempts to quit. Think about what worked and what did not.
Once you quit, don't smoke—NOT EVEN A PUFF!
Tell your family, friends, and co-workers that you are going to quit and want their support. Ask them not to smoke around you or leave cigarettes out.
Talk to your health care provider (for example, doctor, dentist, nurse, pharmacist, psychologist, or smoking counselor).
Get individual, group, or telephone counseling. The more counseling you have, the better your chances are of quitting. Programs are given at local hospitals and health centers. Call your local health department for information about programs in your area.
Try to distract yourself from urges to smoke. Talk to someone, go for a walk, or get busy with a task.
When you first try to quit, change your routine. Use a different route to work. Drink tea instead of coffee. Eat breakfast in a different place.
Do something to reduce your stress. Take a hot bath, exercise, or read a book.
Plan something enjoyable to do every day.
Drink a lot of water and other fluids.
Most relapses occur within the first 3 months after quitting. Don't be discouraged if you start smoking again. Remember, most people try several times before they finally quit. Here are some difficult situations to watch for:
Alcohol. Avoid drinking alcohol. Drinking lowers your chances of success.
Other Smokers. Being around smoking can make you want to smoke.
Weight Gain. Many smokers will gain weight when they quit, usually less than 10 pounds. Eat a healthy diet and stay active. Don't let weight gain distract you from your main goal—quitting smoking. Some quit-smoking medications may help delay weight gain.
Bad Mood or Depression. There are a lot of ways to improve your mood other than smoking.