" When we mentally give a person, place, or point in time more credit than ourselves, we create a fictitious ceiling. A restriction over the expectations that we have over our own performance in that moment. We get tense. We focus on the outcome instead of the activity and we miss the doing of the deed. We either think the world depends on the result or it's too good to be true. But it doesn't and it isn't. And it's not our right to believe it does or is.
Don't create imaginary constraints. A leading role, a blue ribbon, a winning score, a great idea, the love of our life, euphoric bliss... Who are we to think we don't deserve these fortunes when they're in our grasp? Who are we to think we haven't earned them?
If we stay and process within ourselves, in the joy of the doing, we will never choke at the finish line. Why? Because we're not thinking of the finish line. We're not looking at the clock. We’re not watching ourselves on the Jumbotron performing. We are performing in real time where the approach is the destination. "

― Matthew McConaughey , Greenlights