I think I was born strong-willed. That's not the kind of thing you can learn. The advantage is, you stick to what you believe in and rarely get pushed out of what you want to do.
Life had stopped for her a long time ago. She was so out of touch with her feelings that she had no joy in her life and no concept of the fact that she could be wrong. She delivered her care of her insane patients in a killing manner, but she was convinced she was right.
The thing about getting older is the injuries. You just get injured more often. You take time off, you come back, you get injured again and you never get in shape.