Anxiety can be a wicked resident in your mind. A book I’m reading right now gave a definition of anxiety and worry that rang pretty true to me: “Worry, at its core, is the repetitious experience of a mind attempting to generate a feeling of security about the future, failing, then trying again and again and again—as if the very effort of worrying might somehow help forestall disaster. The fuel behind worry, in other words, is the internal demand to know, in advance, that things will turn out fine” (Oliver Burkeman. Four Thousand Weeks: Time Management for Mortals, p. 116). We want to know that things are going to be fine, and our brains can, sometimes, spin out of control trying to find that certainty.