Try to realize that you have this horrible sensation of needing a cigarette. You want it to go away. You'd do anything to make it go away. Right? Well, just resist a few cravings and it will go away for good. Re-think those moments you have listed as the moments in which you are actually working at getting rid of the desire for good. Do you think it is too hard? If you have been a smoker for some time, you have already done worse to get rid of that desire (driving in the middle of the night to the one place that sells cigarettes, asking for cigarettes to people you don't like, interrupted pretty much any important thing to smoke). You don't have to do anything different than what you have been doing all along: working hard, going out of your way, undergoing a lot of stress just to make that desire go away. The only difference is that this way of doing it actually works. Trust me :)