How to get closure

Hello everyone. I have a job interview today and have not been driving a lot recently so I was nervous about the drive. I know I could do it but it was still nervous. For some background, driving makes me anxious and wasn't sure why for a long time. When I was little my mom was an alcoholic and she would drink and drive with me in the car. I didn't understand what was happening and why she was driving so erratically. I thought driving was just really difficult. When I was in 2nd or 3rd grade my mom got pulled over for DUI with me in the car. I didn't understand what was happening my mom just said the cops were taking her away for no reason. I was so scared.

Fast forward to last night, I planned this drive out. I know I can do it but I just kept having the same nightmare. I was back in her car. She was driving erratically and not listening to my cries to slow down. I want to move past this and get closure but she will never admit or acknowledge the role she played. How do I move on?