I gave up 4.5 years ago, after 20+ years. Was smoking 20-40 a day, just finished smoking a ciggie & thought to myself ' I don't enjoy this anymore' & gave up.
I found it easy, have never felt the urge (although I have had cause, Mother dying from Cancer, Wife leaving me & My business folding, leaving me bankrupt for Ãƒâ€šÃ‚Â£130,000).
If you set a date - you can talk yourself out of it, you really have to want to do it.
When you want it - you will just do it, no cutting down, no patches, no New Year resolution, just a smoke free zone!
When you do it, after a while you will find you can taste things you didn't before(yummy!), you can smell on other people what you used to smell like (Barf!).
But remember - you are VERY likley to put weight on, watch out! (it took me 3 years to lose what I put on).
All you have to do is.... Want it, Mean it & you will do it.
If you are planning to give up - I wish you luck, you won't look back.