diarist
/ˈdaɪərɪst/Definitions
1. noun
A person who keeps a diary, or a person who writes a diary or memoir.
“The author was a skilled diarist, and her daily entries became a bestseller.”
2. noun
A person who writes articles or news items based on their personal experiences or observations, especially for a newspaper or magazine.
“She was a diarist for the local newspaper, sharing her insights on community events.”