> I work 8:00 AM - 5:00 PM. Then 9:00 PM - 2:00 AM. And in between, I'm "on call."

Yeah, don't do that. Primarily, make sure you get at least 10 consecutive hours off every day, to wind down and sleep usually 8 hours, some need more. And get some exercise every week, and don't forget to eat healthy. And make sure you are not so stressed that your primary social relationships involve yelling or worse.

That will go a long way to prevent burn-out, no matter what industry you are in.