Being Smoke Free is possible....Learn to believe in yourself.
Just Do it... Stop making excuses to smoke..... Working at a Bar is just another excuse .... there are a million excuses
Write down why you want to quit and make up your mind that you do not want to spend your latter days in hospitals, doing Chemo, radiation, waiting on doctors and nurses and finding out who your real friends are that will visit you dying in there very slowly.
I know plenty of Smoke Free bartenders.... and I will be real proud of you when you decide to join that group !
peace