While it´s useful to feel guilty about something you did that was harmful to someone so that you work toward making amends, guilt is not useful when it’s triggered by worries of what others may think of you. “Timid, insecure individuals may be victims of excessive guilt and constant ‘second guessing’ of themselves and their actions,” said Patricia Farrell, PhD, a clinical psychologist and author of How to be Your Own Therapist, A Step-by-Step Guide to Building a Competent, Confident Life, in an interview with WebMD.