personal diary

Translations
личный дневник
He shared his personal diary with no one.
Он никому не показывал свой личный дневник.
Definitions
A personal diary is a private written record of an individual's thoughts, experiences, feelings, and reflections, typically kept on a regular basis. It serves as a means of self-expression and can be used for personal growth, emotional processing, and documenting life events.
Words
diary

noun
дневник
personal

adjective
личный