I hurt my head at 15, got tackled onto a rock. Was out of it for a while and a bunch of months later I was ok, It did not affect my life for the next 25 years until a brutal head insult occurred. I might have been 90 percent after that head on the rock injury. I didn't notice. You wont notice either. If your doctors say you will get all better, perhaps they mean any residual damage will be so small as to be utterly negligible, which I think others on this board are trying to tell you.

I know it is hard to be patient but chances are a year from now this board and this injury will be most likely a distant memory. You are very smart. I am too. We tend to have to KNOW what will be, not what might be. You may never know if you are 90 or 100 percent. It likely wont matter. You will be better. Some here would kill for 90% :0 So don't lose sleep over it. Just rest and get better.