Well my in-game reactions/focus prevent the outcome from bothering me the rest of the day. I probably stopped being bothered by outcomes after the game was over in my early 20s.
As for watching the game, I only get how I am for Florida - I can friviolously enjoy other teams. For Florida, I'm probably watching with the same attitude as a coach is...I can see the play call and know what should happen vs who screwed up or who made a great play. I'm a good 3-4 seconds ahead of the announcers on that stuff - friends just know that about me.
I'm as harsh on the coaches as I am the players. I'm not overly emotional or yelling, just very focused and a loud clap for a Gators TD, something like that.
People just cause distractions.