I've never smoked (except for an occasional cigar). Good luck.
I have been on oxygen for almost two years due to smoking. Lung cancer is not the only reason to quit smoking. In fact COPD is pretty bad too.
Just remember - after 21 days you will probable lose your physical addition. It is mental after that. Just keep your eyes on the 22nd day.
Try to think of yourself becoming a nonsmoker - not someone trying to quit. That helped me. I imagined all of the places and things I could do without cigs.
Had I not stopped I would be dead today. My lung disease has stablized.
Also demand a Pulmonary Fuction Test from your doctor. It is the only way to tell if you have non cancer lung disease. The earlier you have the test done the sooner you will know if you will have problems later on.
Just think of me with an oxygen tank hanging on my shoulder and a stupid nose tube on 24 hours a day.
gayle