dancing in the dark

Translations
дело вслепую
Without clear instructions, we felt like we were dancing in the dark.
Без ясных инструкций, мы чувствовали себя так, будто делаем дело вслепую.
Definitions
Engaging in dance when there is little or no light; metaphorically, it can refer to doing something joyfully or passionately despite uncertainty, fear, or lack of clarity.