kill yourself doing something

kill (oneself) (doing something)

To overexert oneself or overextend one's effort while doing something. Don't kill yourself trying to get the report done tonight—it's not due until next week anyway. They're killing themselves finishing the last touches on the exterior of the house before the storm hits us.
See also: kill
Farlex Dictionary of Idioms.

ˈkill yourself doing something

(informal) make a very great effort to do something: It would be good to leave at 7 o’clock, but don’t kill yourself getting here by then. We can leave a bit later if we need to. I nearly killed myself finishing the report in time for this meeting.
See also: kill, something
Farlex Partner Idioms Dictionary
See also:
  • kill (oneself) (doing something)
  • kick (oneself) for (doing something)
  • spread (oneself) thin
  • spread thin
  • wash (one's) hands of (someone or something)
  • wash hands of
  • wash one's hands of
  • wash your hands of
  • wash your hands of somebody/something
  • wash your hands of something/someone