[edoceo]

+1 to the exercise / walking. Has changed my mindset. Way fresher at complex problem solving. About 20min into a long walk and ideas are just popping!

Also, scale back your time. Communicate this to management: "I just can't do this anymore". Last time I did that (2005) they said they would start looking for my replacement. A few months later they were still looking and I had a new 30h/week job+3weeks+healthcare at a bank walking distance from my apt.

Treat yourself correctly and the world will do the same.