Before starting low dose HRT, and to some extent even for a while after that, I was really hypercompetetive. I was never very athletic, so I didn't worry too much about things like that, but I couldn't stand to lose or be outdone at anything I put effort into. The testosterone may have had something to do with it, but it was also because I had developed a serious inferiority complex due to my poor self image. Since accepting the true nature of my problem, my self image has improved, and I have started to lose my interest in competitive activities. I used to play fighting games every day, now I hardly play them at all. I used to play fast paced shooters like Quake Live, now I have no interest in them. I think it's just a normal thing that happens as you let go of your male mentality. Buy hey, if you don't like fighting/shooting games, play music games/rpgs. There are way too many things to do in life for it to be worth worrying about losing interest in a few things.