Well, sorry to be a bit pedantic, but you aren't actually that likely to get lung cancer and die, even as a smoker. It's about one in twenty smokers that get it, which is much much more than non-smokers, but still quite rare. I think trying to scare people with the lung cancer stuff doesn't really work, as most smokers know other smokers who never got lung cancer and this gives them false reassurance.
Smoking does, however, massively increase your risk of prematurely dying of a heart attack (yes, you are three times more likely to die of a heart attack than of breast cancer as a woman) or stroke. Or being disabled by them.
Basically, it's a one in two chance of dying younger. So you could toss a coin and hope you are in the lucky 50%.
I heard a smoker say today, well, I'd rather die at 75 than be ill and live til I was 80. She kind of missed the point. One in four smokers will lose 20 extra years of life or more. That's dying at 60 rather than 80.
I don't think you are a bad person for smoking, just that it's better to know the information and then you can make a decision. I don't think guilting you into it will work, you kind of either want to quit or you don't, so wait til you do, then do it.