The interesting thing about negative thinking is that it can feel like we’re just being honest. We say things like: “I’m just getting it off my chest.” “I’m just saying how I feel.” “I need to vent.” And there is a place for healthy expression. Of course there is. But there is a big difference between expressing something so you can move forward and rehearsing the same problem over and over again until it becomes the weather system you live in. Because every time we replay the same complaint,...