what type of figurative language is i'm youth i'm joy i'm a little bird that ha broken out of its egg

Metaphor.

In his fight with Hook on the deck of the Jolly Roger, Peter utters this confident cry. He proclaims that he is youth, that he is joy, and that he is a bird coming out of an egg. These metaphors make him seem all the more confident and triumphant, and are images that suggest birth and victory.

definition was not one of the four methods