Mary59nana. You need to get back into your car everyday and drive somewhere, anywhere, it doesn't matter where. Go on all kinds or roads including motorways.
5 years ago DD was badly injured in a road accident, not her fault, and she has been left with a permanent, but fortunately not crippling, disability. As soon as she could she got a replacement car and got in it and drove, and kept driving. Initially she was very nervous. I refused to drive when she was in the car, she would be sitting beside me, gasping for breath and making little squeaks if I came within 50 yards of another vehicle. I would insist she drove me.
5 years on she is again a confident driver and will sit beside me when I drive without a sound or in-drawn breath. That is because she gritted her teeth and despite her nervousness kept driving.
The AA and other places run courses for nervous drivers, regardless of cause, to help you regain confidence and start driving confidently again. Don't let some stupid drunk driver restrict your life forever.