unfurl (one's) wings

Translations
расправить (свои) крылья
The bird unfurled its wings and took flight.
Птица расправила свои крылья и взмыла в воздух.
Definitions
To unfurl one's wings means to spread out or extend one's capabilities, potential, or freedom, often used metaphorically to describe someone beginning to explore new opportunities or to express their true self.