Possible Answer: I can relate to Hannah, the annoyance with having a younger sibling. They always look up to you and want to be with you. This can get on my nerves sometimes just like Hannah. Most people feel how Hannah and I feel about their siblings sometimes but in the end, we all love them and would do anything for them.
I wrote in the shoes of having a younger sibling but you can mention if you don't have a sibling a cousin or a younger friend that you have to babysit. If I were you I would talk about someone younger.