I'll try to give you advice. Don't give in to the urge to smoke. Do whatever it takes to ensure that you realize it is NOT WORTH IT. I too do not smoke, but there is an allure to it. Maybe its my early childhood when my parents smoked. I just remind myself that it might seem 'okay' now, but by the time I'm 40 I will start experiencing chronic disease. I want to not only live to be in my 90's and beyond but also have a high quality of living. I want to feel like a 20 year old my whole life (even if I don't look it).
I have come to a deeper understanding of tobacco use and its effects through a research paper I did back in college and by reading a lot about it on WebMD. I know now that smoking cigarettes is literally like smoking a free radical generator. All those unstable chemicals cause our bodies to be filled with free radicals/unstable molecules. The more of these we have in our bodies and the longer they remain unchecked, the more likely it is that they will damage DNA or cells in a way that it forms cancer or other general cellular problems/chronic disease.
Most imporantly, remember that its ultimately YOUR CHOICE to smoke or not. You have the power within you to make decisions and stick to them. I have sparingly smoked cigars and pipes but I will not touch cigarettes or dip/snuff/chewing tobacco.
GOOD LUCK.