There's no subject you don't have permission to write about. Students often avoid subjects close to their heart ... because they assume that their teachers will regard those topics as 'stupid.' No area of life is stupid to someone who takes it seriously. If you follow your affections you will write well and will engage your readers.
William ZinsserTo write a good memoir you must become the editor of your own life, imposing on an untidy sprawl of half-remembered events a narrative shape and an organizing idea. Memoir is the art of inventing the truth.
William ZinsserWriting is learned by imitation. If anyone asked me how I learned to write, I'd say I learned by reading the men and women who were doing the kind of writing I wanted to do and trying to figure out how they did it.
William Zinsser