The narrator describes herself as a girl who wears a disguise, implying she often hides her true identity behind a costume or facade. This suggests she's struggling with self-recognition and perhaps using this disguise as a way to cope or feel accepted.
The quote highlights her internal conflict and the difficulty she faces in truly knowing herself, emphasizing themes of identity and self-acceptance. It reflects her feelings of disconnect from her true self beneath the outward appearance she presents to others.