All I can say is that I was a smoker for over 20 years and I feel for anyone struggling to quit. It is a powerful addiction; stronger than heroin, I have read. Over the years, I was able to quit when ever I wanted, once for almost 2 years, until the early '90's when I believe the tobacco companies got wise. They knew that we (smokers) could quit whenever we had the notion, so they increased the nicotine level and took the ingredient labling off the package. Blinded by the smoke in our eyes, we kept right on puffing and when we wanted to quit found it not so easy anymore. It was almost impossible. Once the desire to be free for all time set in, it still took me six years to quit. And you know what,after two years, there are still times when I want to smoke.
If you don't smoke, don't start. Ever.