Louder than words

People call me lonely, but I'm not. I've got books and my brother.
People call me weird, but I'm not. I just like to keep to myself.
People call me mental - and that's exactly what I am.

* * * * *

15-year-old Gabriella Storm is just an average teenage girl. She's smart, pretty, and has an awesome brother.
There's just the tiny drawback of her mental health. Ever since she was born, Gabriella suffered from a brain disease which caused her to forget her memory regularly. Her mom and brother help her out with memories, but the only person who knows the genuine "her" is Gabriella herself. So how can she discover the truth if she doesn't remember it anyways?
And so Gabriella lives on, oblivious of her real identity - until Jannella walks into her life and changes it completely.