I have most of my severe cognitive issues when I am really stressed, whether it is either physical or psychological. As far as all the numbers I feel that I have lost a lot of my critical thinking skills and it sounds like that is waht you are talking about. And it really works on your confidence big time. I'm sure there are mind excersizes that you can do and actual physical things that can help you but I don't know what. Maybe a out patient rehab clinic? Good luck.