Help with smoking at work?

Ok, I just started a new job and I am not allowed to smoke, it is a waitressing job and people that work in the restaurant industry that are smokers can feel me, it can be very stressful and not being able to take that nicotine break is crucial. I was in training last week and having to go in at 7:45 and get off at 4:00 I was pretty good at making excuses to go to my car, but the last day they were training me at the register and I hand't had a cig in 6 hours and wanted to smash the micro screen cause I was ill from it and me wanting a cig. me and this other guy brought up to the manager that not being able to take cigarette breaks during times of stress makes it worse and of course he isn't a smoker and don't get where we are coming from and he just said well what about us non smokers, he don't understand that it's mainly because YOU NEED YOUR NICOTINE AND THEY DON'T!!!! I just need advice on what I can do to help withen these cravings. Thanks.