You may not know it, and you may never have realized, but smoking is a kind of stress response.
Most people who start smoking do so because of peer pressure or curiosity, but shortly afterward, they are addicted because cigarette smoking has an addictive, soothing and calming effect.
As a result, they return to tobacco when they need to handle their stress patterns.
To help yourself, find another place in which to let off your steam, and another manner too.
A massage has always been known to help rather well in this regard, as are a number of other relaxation techniques that help to get your mind off your problems.
It really helps in no small way if you have a close nonsmoking friend with you most of the time; they'll be able to check you every time you reach for a cigarette.
Better still, you should inform everyone around you that you are trying to stop smoking so that they'll know what to do in case you start to break your own rules, and so that they can encourage you.
Added to that, you will likely find it hard and embarrassing to smoke to their face when they know that you are not supposed to smoke.
Smoking fosters dehydration so you should counter it by drinking a lot of water.
A friend told me that drinking water and smoking never go together, so if you make a conscious effort to stop smoking by drinking a lot of water lots of the time, you will find it a lot easier to do.
It certainly beats having to take all kinds of stop smoking medications or being incarcerated for trying to quit smoking.
As long as your smoking cessation is successful in the long run, you have done yourself a great favor.