Farrah,
Without question, it's tough to quit. I'm not a smoker, but I know plenty of them. I was talking with a doctor who told me a story about a patient who was a smoker and a heroin addict. He told her (the doc) that it was easier for him to wean himself off of heroin than cigarettes. I would think that a cancer diagnosis would be enough to scare someone into quitting, but that's not always the case. Everyone is different. My wife was able to quit cold turkey. My dad wasn't so fortunate. He tried hypnosis, gum, filters, the patch, etc. Heck, he would complete chemo and as soon as he was outside of the hospital he'd fire up. A cigarette in one hand and an oxygen tank in the other. What a sight. I know it's a tough road, but I think with support and perseverance you can do it. Best wishes.
Dave