So, that is what I have to look forward to in three years? Crap!
I nearly stopped working for some four or five years, and I the next time I had a serious task, I could tell I had lost something. But then I got a sizeable job and had to work intensely for months. It pretty much all came back. I'm not as quick with numbers, not being able to do as much in my head now. But the logic is all there.
One of the things I do to get to sleep is to recite the alphabet backwards. So, I'm ready for the intoxication tests now.