Reading memoirs by people in their twenties makes me feel old (and I am only thirty-three!). Fortunately, Clarkisha Kent makes up for that because her writing is intense, rich, and thoughtful. Fat Off, Fat On: A Big Bitch Manifesto is a memoir, yes, but I also love that framing of manifesto as well: Kent is bringing forth a type of energy that she wants to see in this world. I received a review copy from…