From Don't Let Anyone's Criticism or Judgment Define Who You Are on TinyBuddha:
"Ultimately, I realized that I felt insecure because I was carrying around the words and judgments I’d heard at different points in my life as if they were written into the code of my DNA."
I have done that for 45 years. Some judgement I have been able to let go, but some just linger and haunt me. But it is one thing I continually work on - letting them go.