why does anne want to keep a diary

Anne wants to keep a diary because she does not have a "real" or true friend with whom she can confide her deepest thoughts and feelings. She feels loneliness despite having family and acquaintances and believes that paper has more patience than people. The diary serves as a trusted friend to whom she can share her innermost emotions and experiences, providing her an outlet for the burdens and pains she carries during her difficult circumstances in hiding during World War II. She even names her diary "Kitty," treating it like a dear friend to confide in. This diary becomes a way for Anne to express herself and feel less isolated in a time of fear and confinement.