Brent Glesson.. great advice
Stay in Your Three-foot World. Control what you can, ignore what you can’t.
One of my closest SEAL teammates, Mark Owen – bestselling author of No Easy Day, once told me a story about a rock-climbing course he attended. One afternoon, Mark found himself about one hundred feet off the deck and about twenty feet above his last piece of protection. Meaning that if he lost his grip and fell, he’d plummet forty feet before the rope caught him in a violent jerk. Noticing that Mark was freezing up, the lead instructor lit a cigarette, and without using a rope, shimmied up the rock face to Mark’s location.
“What’s up bro?” ask the wiry instructor, taking a long drag while clinging to the rock. “Don’t worry about anything but what’s in your immediate control. Stay in your three-foot world.”