Do people tend to focus on certain things each day or just diary format with general thoughts etc?

I don’t know what people do. I know that I write things I want to try and do in my day and reflections from my week. And how I am feeling. And words of encouragement to myself, from myself.

I started with just generally writing my thoughts, but after a while I'd write about how I'm progressing with my goals, things I'm grateful for, my mood, and other things.
Eventually I made my own list of prompts for all the things I normally write and then choose whichever one I feel like on the day.