CNN  —  When American golfer Gary Woodland won the US Open tournament in 2019, he was on top of the world. Just four years later, he quite literally thought his world was going to end. “It was hell,” he told CNN Sports at The Players Championship in Florida. “Every situation, from driving in a car to getting on an airplane to walking down the street. Everything was end-of-the-world death for me.” Seemingly out of nowhere, Woodland found himself crippled by anxiety and the fear of dying; he was