run around like a headless chicken

Translations
бегать как безголовая курица
She was running around like a headless chicken trying to get everything ready for the party.
Она бегала как безголовая курица, пытаясь подготовить все к вечеринке.
Definitions
To behave in a frantic, disorganized, or panicked way, often because of confusion or stress, without achieving anything productive.