Pull Oneself Together Meaning
(idiomatic) To become mentally focused after a period of being unfocused.
Example: 1910, E. M. Forster, Howards End, ch. 6:
"Damn, damn, damnation!" he murmured, together with such other words as he had learnt from older men. Then he raised his hand to his forehead and said, "Oh, damn it allâ€”" which meant something different. He pulled himself together. He drank a little tea, black and silent, that still survived upon an upper shelf. He swallowed some dusty crumbs of cake. Then he went back to the sitting-room, settled himself anew, and began to read a volume of Ruskin.