I'm relatively new to it as well, but I make a bullet point list. In this outline, I'm putting things in loose, big terms. It just describes big plot things, with any relevant notes if something doesn't make sense at face value. This creates a skeleton of sorts, acting like a guide to direct the creative process. Granted, there are a *lot* of ways to outline a story, depending on preference! Here's a link to a video with some different methods. https://www.youtube.com/watch?v=kieAfi3hLEY
If you want to put it in terms of the video, I'm between a timeline and a skeleton outliner. Doing this gets me excited to hit the plot points, and acts as a sort of motivation.