Come down off (one's) high horse
Translation of "come down off (one's) high horse" into Russian
come down off (one's) high horse
перестать зазнаваться
It's time for you to come down off your high horse and admit that you were wrong.
Пора тебе перестать зазнаваться и признать, что ты был неправ.
Definitions
To stop acting as if one is superior to others; to become less arrogant or condescending.