come into (one's) own

To reach a new level of maturity, independence, or success. Often said of young adults. Betsy has really come into her own this year. A full-time job, a new apartment—she's doing great!

Common Names:

Name	Pronounced	Usage
Rhiannon	hri-AN-ahn (Welsh), ree-AN-ən (English), REE-ən-ən (English)	Welsh, English, Welsh Mythology
Tillie	['tili]
Caden	KAY-dən	English (Modern)
Yorath	-	Welsh
Joan (2)	joo-AHN (Catalan), zhoo-AHN (Catalan)	Catalan, Occitan
AntonÍN	-	Czech