Is the tendency of people to seek and process information that confirms existing attitudes and beliefs instead of seeking and processing information that poses challenges to their attitudes and beliefs.

So this should not prove that difficult. All you have to do is explain how and why she uses both these narratives. What is she hoping to accomplish? What is her goal, and what kind of message is she sending? You may want to include your own examples, thus bringing your point of view. You can say that you would use it to review your past, your older self would be the third person, while the younger self would be experiencing the events, then compare it to her style.

Good luck