I'd like to say I'm feeling better and healthier but I'm not.
I think feeling better is some sort of myth. Smoking or not smoking I've always felt the same. It's like the gym, people say it makes you feel good, but it does nothing for me apart from make me feel tired and sore.
There is nothing to 'give up'! Give up poisoning yourself maybe? Give up wasting money? Give up feeling like shit? Give up killing yourself? Give up smelling disgusting? Give up wasting money? Just choose not to do it anymore - Thats what I did nearly 4 years ago.
All you need to know:
The Easy Way To Stop Smoking by Allen Carr
Invest in the book. It will be the best move you ever make.
This to a T. If it wasn't for that book I'd be going to buy myself 20 fags to smoke my way through a hangover today. Now I'm buying sausages, bacon and eggs. Winner.