I can swing both ways sometimes it makes me just stop gaming for a while and do something else, but honestly, some other times I can be pretty stubborn and remain glued in place until I perform more to my own standards, change strategy to see if something else works better or I restrain the competitive side and try to relax again. Most of the time after a while I feel better, specially if I realise I am taking myself way too seriously, it is just a game. Funny enough, it seems taht the less I am trying to prove myself the more I can recall doing well in a game.
Of course, sometimes just staying there when I am being stubborn can really backfire. Sometimes I just get so angry and disappointed at my reflexes I just don't want to know about that particular game in a good while and a dread trying it again because I am still sore from the bruise to my ego last time caused. You just don't want to suck as bad as you remember you did last, because it just invalidates any previous victorious memories you had.
Like I said, sometimes I can take too seriously a videogame. I am not a very competitive person in nature, so it takes some times for me to get into it. However once my competitive side wakes up I really get into it. I even start getting both cocky and grumpy before I realise I am doing it depending how am I doing in a match. Fortunately it is only like temporary outburst during the night and I have rarely gotten out of hand. My controllers are still working and I think I haven't scared my friends playing with me... except for Smash, but I deserved it when I decided it was a good idea to imitate
Karin's laugh every time I knocked someone off.