I apologize for missing your point. Can you put it another way to help me understand?
In my opinion, we all have a "thorn" in the flesh we must deal with in this life..............HOW we deal with it is what is important. Yes, we need to recognize it, even confess it to God, and pray for the strength to resist it........this is very important.
However, we have a choice of how to deal with it.............if we choose to wallow in our fleshy lusts, desires, remain chained to their sinfulness, then we can hardly claim "victory" over them can we..............rather than choosing to remain servant to those lusts/desires, we must give them to God and struggle daily to be victorious over them.........Paul prayed to have his thorn removed, and God said no.........God said His grace was sufficient.......and that in Paul's weakness was God magnified.
By struggling daily to be victorious over our thorn, we magnify the glory of God, for it is surely His grace that allows us to do so without giving in or acting upon our lusts/desires.
Your example of the alcoholic and the can of beer can also be a good thing...........a sign of victory for the alcoholic........but maybe not opening it would be better. Just as with your lusts...........if you get to the point where you can see a beautiful woman and think, "hey, she is quite beautiful....." AND NOT begin to "lust after her" then you have begun to have victory over the thorn.............To say you can not do this is to admit that you are defeated..........if you are defeated you are not relying on God.......His Grace to sustain you..........Now, I say "you," but I mean "all of us."