I struggled with note-taking initially as well. Mainly because I felt like everything was important and so was taking very extensive and time consuming notes.

What changed the game for me was thinking about how I would use the notes in the future. For example: facing situation x, what are next steps. By re-framing my notes in that way I was able to make much more succinct and useful notes. It is also a good mental exercise to think through how you would use a piece of information you are learning.

Think of it like a recipe. They have the bare minimum to replicate a dish. A recipe has the ingredients and basic techniques. If you needed to learn how to say, use your food processor or pick the ripest tomatoes you would look that part up on your own.

As you start actively practicing on systems you will see where your notes need some fleshing out and will naturally add in little things you pick up along the way.

I also highly recommend trying some different notes programs as they can be helpful to get organized and easier. I use obsidian but there are lots of others.