I have been diagnosed with an anxiety disorder, OCD, and one thing that triggers me is character creation in RPG's. Full party creation is the absolute worst. I always want a "perfect" or optimal build and will often just try to find a guide for the "best" party build. But then I get stuck at the character creation screen for hours at a time sometimes, agonizing over my build trying to "get it right". I usually have to take some Xanax by this point.
Then once I start playing, I have to complete the entire game. I want to complete all the quests, get the best equipment, and explore every inch of the fog of war so that the map is perfect. If there is something about the game that would keep me from doing all of this, I just quit playing, rather than finish an imperfect, sub-optimal game.