If you ever want to get another perspective on how addiction can destroy your life watch the movie "Flight" starring Denzel Washington. His character is an alcoholic pilot that goes from fame to lame to recovering addict. There are many scenes in the movie that addicts of all substances can relate to. I suggest you watch it and pay attention to the scene in which he finds the mini bar, grabs a small bottle of vodka, sets it down, pauses for a moment, and then snatches up the bottle. That's the vision I had when you found the trophy can in the bottom of that bag. You saw it, you grabbed it, you thought about your 400 days quit, and then opened that can and threw it all away.
The movie had a much better ending but you now have a chance to join the ranks of the retreads here at KTC if you choose to do so. You know it's going to suck the next few weeks but you gotta battle through it. You know this and you've done this before, so you shouldn't need direction from anyone on how to execute your final quit. You will however have to modify a few aspects of your quit strategy because you failed miserably. You'll need to post more in your group, post support roll in other groups, post in other's intros, and welcome new quitters as they stream in. You have experience as a special butterfly and a caver so you can teach other people on exactly what should not be done.
The rest is entirely up to you. You have to want to be quit, want to stay quit, and learn to absolutely vehemently hate nicotine and want to kill that bitch every time you see her. The ball is in your court buddy, whatcha gonna do now?