Dealing with Stress when Quitting Smoking

It was through a workshop that I quit smoking and 3 months later I was diagnosed with breast cancer. I had been quit for 5 months and I relapsed while I was going through chemotherapy.Most smokers in a very short period of time feel like a non-smoker and think that they will never smoke again until they have to handle a tremendous amount of stress, like I did with having to go through cancer