There's a really classic cliche every time you switch the TV on - you see cops arguing. I have spent a day a week for many years in the presence of police and I have never seen them argue. It's a military hierarchy. They do what they're told. There's no bickering.
I don't really unwind after a performance. I'm still pumped up and just want to get back on stage.
If you don't accept failure as a possibility, you don't set high goals, you don't branch out, you don't try - you don't take the risk.