I decided to quit because I've been greatly motivated. I have an uncle who was a heavy smoker in his younger ages. He has had some issues with his lungs and doctors said that he had to quit. One day he just got up and told himself that he will not smoke anymore. It has passed almost 20 years and it is true, he doesn't smoke since that day. His strong will power motivated me much and I told myself:'If somebody can do it, I can do it, too.'