Regret is an insidious companion. It brings deep pain and unnecessary guilt. I am learning I can generally shut it down with facts. (And if I should come upon a regret I cannot shut down, I suppose I will have to admit my mistake, forgive myself and move on). These days I am hearing two distinct voices in my head: 1. I should have more vigorously pursued clinical trials (or a different diet, or treatment at a different cancer center, etc.). You did the best you could with the