Cold turkey and Cognitive dysfunction

Hey, I really hope someone can answer me.

I was in hospital and they forced me to quit 4 mg lorazepam cold turkey.

In a few days all of a sudden I momentarily lost my memory and got cognitive dysfunction. I struggle with slow thinking and processing, bad short term and long term memory, difficulty visualizing and analysing, and retaining new information.

It's been one year and I see zero improvement.

Has anyone else here experienced cogntitive dysfunction after going cold turkey?