At least I have an excuse for 3 more years - CHEMO BRAIN!
I do a sudoku puzzle every morning to test whether I can do anything important that day. If I can't do the puzzle, I'd better not try to sew! Every time I've 'forgotten' to do that test, I've had to unsew EVERYTHING!
Chemo brain is a real thing. Chemo is poison, and it can affect your thinking, memory and ability to focus for up to 5 years. My son just laughed and said 'Chemo Brain!' when I called him TWO DAYS AFTER his birthday to wish him Happy Birthday.