Great question!!! One I have been asking myself as well. I am also 59 years old. 60 is only a few months away and I cannot believe it! My career has been a struggle since I entered the work place and I am at a loss. I still feel I'm a kid in his late 20s trying to find my way in life!!! Talk about depression! Also, I do not want to rely on my partner anymore, because I am not sure where things are heading.
So I understand your question about retirement. I too wonder about it. Do I leave my field and get become a driver for the next 15 to 20 years?
I'm at a loss. Maybe we can help each other.
All I know is, the depression is dark and thick AND I CAN HARDLY THINK.