autobiographical
US /ˌɑː.t̬əˌbaɪ.əˈɡræf.ɪ.kəl/
UK /ˌɑː.t̬əˌbaɪ.əˈɡræf.ɪ.kəl/

1.
relating to or dealing with the writer's own life
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The novel is largely autobiographical, drawing on her childhood experiences.
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His latest film has strong autobiographical elements.