It depends!
What I ate for breakfast is a definite no.
My favorite movie or TV show would be for back to school assignments like an All About Me essay.
The history of my hometown would be what I would choose if u wanted a narrative that doesn’t focus on you, but is still about u (of that makes sense).
A mistake I made would be the strongest one in my opinion but it depends on what mistake and what lesson you learned.
Hope this helped :)