a record of events written by a person having intimate knowledge of them and based on personal observation.
I think that she has accomplished creating a memoir, because she gives us these events in her life, whether they be factual or fictional. She also, prominently and expansively, gives us her personal opinions on said events. This entire books does. This passage in particular though talks about the overall concept that she is using. It speaks of using subjective truth rather than its counterpart, and through this she is recreating the stereotypical idea of a memoir.