Yivin, I doubt that smoking is your habit, I'm guessing it is your addiction. There is a difference. While I'm against smoking because of many reasons, the thing I'm most against is the tobacco companies being able to regulate the amount of nicotine in their tobacco products. If they made nicotine free cigarettes (they can and have done it) and you smoked those, and only those it would be a habit. But since they don't sell nicotine free cigarettes what you have is a good old fashioned addiction.
It's not really up to you to decide if Yivin is experiencing a compulsive psychological need for the nicotine or if it's just a regular garden-variety need. You know, not everyone has the same level of tolerance.
We know you don't like to smoke. Thanks. Try to be less sanctimonious about it though.