have it all together

have it (all) together

To be well-prepared and organized for something, especially mentally. Did I forget to pick up the kids again? Geez, I really don't have it together! I don't know what she's been telling you, but I doubt she has it all together—these files are a mess.
See also: have, together
Farlex Dictionary of Idioms.

have it all together

 and have got it all together to
be mentally and physically organized; to be of sound mind. I don't have it all together today. Try me again later when I have it all together.
See also: all, have, together
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

have it all together

tv. to be mentally and physically organized; to be of sound mind. (Have got can replace have.) Try me again later when I have it all together.
See also: all, have, together
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • cast (one's) lot in with (someone or something)
  • cast lot in
  • Don’t make a federal case out of it!
  • don't bet on it
  • bank on
  • banking
  • don't get me wrong
  • don't beat a dead horse
  • cart before the horse, don't put/set the
  • all in (one's) head