The central idea that these details support from 'I'm not thirteen yet' is the writer wants to be older than her friends.
I'm Not Thirteen Yet was written by Amy Bernstein. Numerous characters can be found in this book. One of the characters is not yet 13 and is anticipating her birthday, although her friend has turned 13 already. As a result, the excerpt is a description that is written so that it also describes itself. A character in the story himself serves as the story's narrator, making it a personal narrative.
In the story, the author describes some of her personal experiences. One indication that the author is writing from personal experience is that she entered the teenage world even though she wasn't yet one of them.
To learn more about 'I'm not thirteen yet' refer to:
brainly.com/question/17628635
#SPJ1