pull oneself togetherREGAIN ONE'S COMPOSURE, recover, get a grip on oneself, get over it, snap out of it, get one's act together, buck up
[TahlilGaran] Dictionary of Contemporary English ▲
pull oneself together v. phr. To become calm after being excited or disturbed; recover self-command; control yourself.
It had been a disturbing moment, but he was able to pull himself together. [TahlilGaran] English Idioms Dictionary ▲