Emotional management and being able to detach yourself is a legitimate skill that needs to be trained, and it applies to other real-life situations too. Frustrating video games can help! Personally, I already grinded this skill pretty well through many hours of playing and losing at Nethack, an unforgiving roguelike.

I would definitely recommend something in the roguelike/roguelite genre if you're interested in improving your emotional management, since all of your progress can be wiped away by permadeath due to one false move, and you just have to learn to deal with it.