Coping with a Dysfunctional Mind

Any tips on how to cope with having such a dysfunctional mind? For example, I have crippling facial blindness. It's extremely embarrassing as I'm a pharmacist and many of my patients think I know them, and I do on paper, but I have to fake my way through interactions every single day of my life. Unless they have a very, very obvious feature or distinct voice, perhaps... It's impossible. I've had people drop a script off on one end of the counter, I look down to write something, I look up and see them lingering and ask if I can help them. It's terrible. I also have dyscalcula, where I can't do simple math in my head like 8+4, I can't visualize certain concepts like distances (what on EARTH is 2 meters?!), I can't tell east from west when I'm driving... I also got diagnosed as an adult with ADD. I've heard these are all linked.