@ToWorldsUnknown I got into basic "bullet journaling" through the vlog entries and book of Ryder Carroll. Some writers on YouTube showed their own variations.
One I liked was drawing a long and narrow rectangle, whether vertical on the margins or across the top of the page—whichever you're comfortable with—and divide it into five segments labeled: Research, Outline, Draft, Revise, Submit. (For a specific project or title.) As each level is accomplished, you get to shade that segment in or color it in.
Another format I liked had columns under the working title labeled: date, chapter, notes, word count. So, on the date that you sat down to write something you write (humor me on this) the date…and under the chapter column on the same line you write the chapter you're working on…and then in the notes section you might write something like "add more character interactions between the brothers in this scene?" or "add description of the manor" or "too much dialogue; rework later" or something, before jotting down in the word count column how many words you actually wrote out.
There's another one similar to the color-in-the-progress-gauge but instead of gauge segments it's boxes drawn on the page that you move a stickie note around (the stickie note has the working title of your work written on it).
Bullet journaling has also been very helpful in organizing my worldbuilding pen-and-paper notebook (index, collections, threading…) I dedicate one notebook per world. Of course that has different advantages and disadvantages compared to keeping worldbuilding organized online.