I don't know if this'll help but what I do sometimes is boot up PokerStove and actually plug in the hands that have kicked me in the bollocks. I work my way through each street to just show my tilting brain exactly how ahead I was. This focuses me on the long term in regards to how I played and how much I should want to be in that situation again and again.

If you're not ready to lose with Aces 20% of the time, you'll be in trouble mentally before too long.