You will die either way, but smoking will make you suffer more.
Putting up with a few unsatiated cravings is nothing compared to all the coughing and wheezing and inability to clear your throat irrespective of the fact you try to clear it every 30 seconds.
I used to smoke and I couldn't care less about all the ignorant and inexperienced people who preach against it saying you'll die etc, or those who have been brainwashed to believe that breathing your second hand smoke would kill them too. That's all meaningless BS coming from self-righteous know-it-alls who have no experience, know nothing and thus have no right to comment, but personally when I started coughing all the time and clearing my throat constantly it was just ANNOYING. Health, social reasons, I couldn't care less, but when it started doing something to annoy me personally, there was just no point.
They won't let you "live in peace", you can forget that. Do something constructive with your time and money instead, if you want to feel good. That's what every other living creature has to do, whether it's hard or not.