Thinking about a past event that is troubling can understandably contribute to depression. New research shows how imagery rescripting can help counteract those negative emotions.
— Read on www.psychologytoday.com/us/blog/fulfillment-any-age/201809/you-cant-change-the-past-you-can-rewrite-your-history

Hmmm sounds interesting, and apparently it does work, at least for some people.