Very sorry to hear that, Laylia.
Smoking and nicotine aren't exactly the same, although I don't think anyone knows the risks of nicotine alone. I actually prefer electronic cigarettes to regular ones - and I don't smell of smoke all the time (which my wife appreciates). Personally, I dont think nicotine is the worst thing in cigarettes - same way I don't think caffeine is the worst thing in a diet coke. Just my opinion, though - never liked the taste of nicorette, etc.
That said, I'd probably be better off cutting out nicotine AND caffeine completely, but for the moment I've just switched to twinings teas and lexfield and njoy ecigs. Not perfect, but hopefully better than diet cokes and marlboro lights.