get on top of somebody

get on top of (one)

To overwhelm one to a point of despair or powerlessness. If you don't do your homework now, it will get on top of you later. I don't know what I'm going to do—the credit card bills have just gotten on top of me.
See also: get, of, on, top
Farlex Dictionary of Idioms.

get on ˈtop of somebody

(of a problem, too much work, etc.) make somebody feel very worried or depressed: She’s letting things get on top of her at work.
See also: get, of, on, somebody, top
Farlex Partner Idioms Dictionary
See also:
  • don't get me wrong
  • don't bet on it
  • all in (one's) head
  • don't bother me
  • Don't bother me!
  • (someone's) secret is safe with (one)
  • don't give up the ship
  • don't beat a dead horse
  • don't cry before you are hurt