Restrict your working hours.
There's a load of reasons working 11 or 12-hour days is bad for you, but suffice it to say, cutting down your shifts to a normal or slightly above normal average is in your greatest interest.
"Stop being the first person to get to work and the last one to leave," said career coach and bestselling author Julie Jansen. "One of these is OK if it aligns with your natural body clock. Not both!"