Smoking is a habit that is closely linked to certain times and places, if you break these links, you break the habit. The best way of doing this to avoid the situations where you a cigarette. If you can't avoid , then you will just have to fight off the temptation. Sit down and think when and where you usually, have a cigarette. For example, do you always have after breakfast? Once you stop smoking, times and places are going to be dangerous spots, work out now how you'll cope.
It will also help you can make new habits to break the old one of smoking, so plan a new activities to replace smoking. Choose things will distract you and occupy your hands. Some people find helps if they cut down they actually give up. But don't look on this an alternative to giving up, and don't do it more than a couple of weeks at most.
The danger is that you could go to smoking many cigarettes as before.