My essay is about how my brother used to make up stories on where I came from and how i took that and evolved into telling my own stories and how I do that through my various hobbies. Does that sound good?
Which prompt would this address?
Make sure the focus is on YOU, not your brother.
Discuss an accomplishment, event, or realization that sparked a period of personal growth and a new understanding of yourself or others.
It sounds like a good way to frame your story. But as mentioned, you want to be sure it reveals who YOU are.