What is the activity of writing personal thoughts regularly called?

The activity of writing personal thoughts regularly is known as keeping a diary. This practice involves documenting one’s feelings, experiences, and reflections in a private space, which can serve various personal purposes, including emotional expression, self-reflection, and tracking personal growth over time. Keeping a diary allows individuals to articulate their thoughts and experiences, fostering a deeper understanding of themselves and their circumstances.

Other choices, while related to writing or recording, do not specifically refer to the act of regularly documenting personal thoughts. Keeping a record typically refers to maintaining factual information or data, while keeping a calendar involves recording dates and events rather than personal insights. Keeping notes generally pertains to jotting down information or ideas, but not necessarily in a reflective or personal manner as done in a diary.