While this Outside Magazine article by Blair Braverman (what a great name!) is intended for wilderness adventures, the tips are applicable to mentally preparing for any crisis event.
“Basically, I had stopped seeing problems—even dangerous ones—as disasters and started seeing them as a normal part of travel in deep wilderness. If you spend enough time outdoors, no matter how well you prepare, you’re going to encounter a crisis sooner or later. Trust your future self to handle what comes. ”