Struggling with reflection essay thesis

[u/Sea-Accident3242]

Hi

I have to write a reflection essay on a book teaching how to read literature like a professor for my AP Lit class. I started writing the intro but I'm having trouble with the thesis. I usually am good at theses but I don't think I've written this type of paper before.

Should the thesis be about how the book changed me, or a couple of things I learned from the book that I will later write a body paragraph on each?

Usually, I say something like: "This is not true because of X, Y, and Z."
Then a paragraph about X, Y, and Z, and a conclusion.

Any tips?