One would surely lead to another, and tomorrow morning you'll be absolutely devastated that you did not resist the desire. Therefore, grit your teeth and think of tomorrow morning when you will wake up feeling like a million dollars for not giving in to temptation. It's just a craving. It has no weight, no colour, no substance, no real strength, no face, it is a phantom and no chance of surviving if you see it for what it is.
Your addictions dying pains. Let the scum die.