Yep, 3 days is needed for the physical addiction from all I've read. After that it's mind over matter. If you don't mind, it don't matter. Some things that help: Keep your hands busy. You are used to holding that smoke. Hold a pen or something instead. When having a craving, do pierced lip breathing, as in, tighten your lips into a small circle, as if you are hitting a smoke. Breathe long and slow. The craving will pass in about 10 minutes or so. Stay busy! Don't sit there and keep dwelling on "Man, I want a smoke." You have to break your body's physical habits too. Your hand is used to bringing that smoke up. Find something else for it to do during a craving (dirty thoughts aside). Cold turkey is very hard and very often not successful, but not impossible. People do it every day. Try this for now, don't smoke in the car anymore. Once you are used to that, cut out another time of day you usually smoke. It's a process. You can do it. Think of the addiction like it's a real person. Yell at it. Tell it you're gonna kick it's sorry bellybutton like there's no tomorrow. You can do it man. Kick its ass!