dart around like a headless chicken

Translations
носиться как безголовая курица
She was darting around like a headless chicken trying to get everything ready for the party.
Она носилась как безголовая курица, пытаясь всё подготовить к вечеринке.
Definitions
To move around quickly and aimlessly, often in a state of panic or confusion, without any clear purpose or direction.