Writing down your thoughts and feelings after a traumatic experience can help you get thoughts outside of your head. It can also help reduce the distress caused by giving you the ability to gain perspective about the experience.
Write down anything that comes to mind related to the trauma you experienced.
These changes in beliefs are there to protect you from future harm, even when threats are gone. They can change the way you relate to others, whether or how you take risks, or how you feel positively about yourself.