Potential Benzo Braindamge?

Just a question. Unfortunately used Ativan back in 2017 2018 for 15 months straight, listened to my therapist. Still don’t feel like I have recovered. Before that I took Lexapro from 2016 till 2017 and Effexor around the same time as Ativan. I am not the same person anymore. End of 2018 I also used a cream called Aldara which gave me a horrible nervousesystecrash somehow. No doctor belives me. After that I developed Dysautonomia POTS and Excercise ( Running ) Intolerance. I dont know what to do!? Do I have permanent receptor damage? I have no more focus memory, time feels distorted and I even have difficutlies going anywhere since my brain cannot process my environment anymore. It is really hellish. Please help. Can I recover my receptors? Especailly Gaba receptors? Or can I get them tested like with a spinal tap or something?