Build a Morning Journalling Practice That Does Not Become a Chore

Journalling practices that do not match the purpose tend to fade into staring at the page or writing the same entry repeatedly. The format matters: processing difficult thoughts uses a different structure than building daily clarity or generating creative ideas. This matches the format to the purpose, keeps the practice to a realistic length, and gives one rule that prevents the same entry appearing for the seventh time.

I want to start journalling in the morning but my previous attempts have faded after a week or two. I end up either writing the same things every day or staring at the page. Help me build a practice around one of the three evidence-supported journalling formats that is most likely to produce the thing I am looking for: [describe: processing difficult thoughts, building daily clarity, creative thinking, or gratitude and perspective]. Tell me the format, how long it should actually take, the one rule that keeps it from becoming repetitive, and when most people quit and what to do instead.