Great question. Can't wait to see responses!

I often think - "This job does not define me"
"This job is a stepping stone to greater things"
"My manager does not know me well enough to judge my full potential"
"These people who are difficult to work with are irrelevant in the grand scheme of my life"
"Focus on those people and things you love, not the ones you don't. Those other people are not worthy of your time"