I used to get extremely angry, so here is what I've done since 1985 for almost all Hawkeye games (except bowl and home games....I have season tickets so I obviously can't do this for home games):
I don't watch. I record the game and watch if they win. Losses still hurt, but nowhere near as bad. No matter how I try, I just get too emotional. Had I watched last night, I would have gone ballistic. I never throw things, but would have been angry and upset, and not gotten any sleep.
Stupid to act that way? For a 57 year old man....yes. But I found a way to lick it, and I am much better off!