If you were harry potter's brother or sisterhowowuldyoufeel,wouldyou…

I'm writing a story about a girl who is harry's little sister. She's always doing crazy things and punching people who annoy her because its the only way anyone aknowledges her or pays any attention to her. It just came to me one day how bad it would be. Dont get me wrong im sure hed care and treat you well but you'd be known as Harry Potter's brother/sister and never be called by your real name and youd always be ignored because of Harry's link with Voldemort scar etc. And also my character has bad self esteem issues from the Dursleys and in HP5 she develops bulimia she likes to yell out random things, marry her friends and will do anything for attention! Im havin great fun her name is Mirabella but everyone calls her miri by the way.