This works for me, I dunno about for you.

If I do good in a MTT and score a top 3 win, I usually take the rest of the day off to re-focus.

After a really bad beat, I do the same.

For instance I was in a MTT down to the final 17 and got busted by a 2 outer on the river when I was about to triple up into the chip lead. I was steaming but i knew I played my game as well as I could have, and decided to call it a night.

Next day I wake up and take down 1st in a PL Omaha tournament.