Hello Y-claire,
What would happen to you if you did 'less' at work? Is there a big productivity thing going on at work that threatens to 'dump' you if you don't drive yourself into the floor each day?? Can you do less and leave some time for yourself in the evenings to go online or to just relax or do a few exercise and have a good, healthy meal at home?
What ever happened to talking to friends or family on the telephone in the evenings??
You really have to find time for yourself. We're the same age, you and I, and I know how necessary it is to carve out some time for myself for re-creation and feeding my mind.
Please make the first move to slow down at work and still give them a day's work without killing yourself...