A friend gets promoted and you're genuinely happy for them, and then immediately wonder why your career isn't moving. Your neighbor renovates their kitchen, and suddenly your cabinets look beat up. Your friend posts family vacation photos, and you feel bummed you haven't left town all summer. We're wired to compare ourselves to others, but leadership expert Patrick Dickerson said that instinct is quietly costing us more than we realize in our friendships, our marriages and how we parent.