take on oneself

take something (up)on oneself

to accept the entire burden of something on oneself. (Upon is formal and less commonly used than on.) You didn't need to take it all upon yourself. There are others here who can help, you know. Jan takes too much on herself.
See also: on, take
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • kick (oneself) for (doing something)
  • 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
  • keep in sight
  • keep sight of
  • keep sight of (someone or something)