>Self-reflection, a cornerstone of many therapeutic interventions, is a slippery slope. If not careful, it can amplify self-focus and aggravate rumination—the clinical term for repetitive negative thoughts about what can, did or will go wrong.

This is absolutely true for some people, me included. I have learned to deal with these things in other ways but for the longest time I was stuck ruminating over stuff that happened decades ago and it always led to catastrophe.