The key to quitting is too do it in steps over months.. the only way to reduce your dependence on nicotine is to reduce your nicotine levels in your system. It's much easier to quit if you only smoke 2 cigarettes a day, that is how I did it from a pack a day for 35+ years...one in the morning and one at night, the one in the morning is the hardest one, especially if you like coffee and a cigarette, the one at night is so you don't get insomnia...if you can get down to that, you will have dropped your nicotine levels by 80 percent..I kept the cigarettes in my glove box in my car, so I physically had to get the cigarettes...I also got a nicotine vape pen, that I used for the physical part of having to hold a cigarette in your hand or if you drive and you can take one or two puffs off it occasionally if you feel the need for a cigarette, for say driving, because you know if you light a cigarette, you are going to smoke the whole thing... avoid hanging out with the smokers at work on break...if you can get down to 2 cigarettes a day, you won't panic, because you don't have any cigarettes, you just need to make it 12 hours. Once your nicotine levels are reduced that much you won't crave one after you eat or your other triggers... you won't get the withdrawal symptoms, like if you quit cold turkey... Eventually if you get down to 2 a day, you will be amazed how long a pack of cigarettes lasts and how much money you have from not paying 10.00 for a pack of cigarettes every day... than make the choice to get rid of the cigarette at night and keep the one in the morning as a reward....at this point you are almost a non smoker..... you have reduced your smoking by 90 percent if you smoked a pack a day... you can quit one cigarette a day.... good luck...I tried to quit numerous times...I have a rescue inhaler and Breztri... you really don't want to be on oxygen.. so quit now... while you can..