I started when I was like 15 or 16 , I am now 53. Dec 22 2016, I was at work getting short of breath for no reason. afternoon break came and I took that pack of cigarettes , stuck them in a vise, and proceeded to compact them into " ultra thin 100's" . I made up my mind that I was DONE. I went to my doctor and found that I had GERDS, and after a bunch of tests, my lungs and heart are still good after a pack and a half a day for 30 years. I was also prescribed 25 mg of zoloft to take the edge off my anxiety from quitting cold turkey. the first 2 weeks were a little rough, but now I don't even think about it. I can stand right next to an ashtray with a burning cigarette and it doesn't bother me one iota. in fact , it kind of grosses me out. YOU HAVE TO MAKE UP YOUR MIND TO JUST BE DONE LOL