get one’s head together

get (one's) head together

To organize one's thoughts, often with the aim of regaining one's calm. I really need to get my head together before I go into the board meeting. A: "Susie seemed really stressed this morning." B: "I think she's fine now—she went for a walk and got her head together."
See also: get, head, together
Farlex Dictionary of Idioms.

get one’s head together

verb
See get one’s act together
See also: get, head, together
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • at the back of (one's) mind
  • at the back of your mind
  • (from) top to toe
  • at (one's) doorstep
  • at doorstep
  • be written all over (one's) face
  • be written all over somebody's face
  • be written all over your face
  • at somebody's expense
  • at someone's expense