You worried for a reason, so accept it.  At one time in your life you believed it served you.  It could be from early childhood when part of the biological fight, flight or freeze mechanism got stuck because the natural cycle was not completed.  This can create some level of PTSD.  PTSD can create anxiety and worry.  A sense of always needing to be on the alert, vigilant, bracing for the next crisis.  So have compassion for that part of you that was doing the best it could.  I sincerely believe, if you could have done better, you would have!