hmm, this is a multichapter? different outlining strategies work better for different people. for me, i can't do a full detailed outline for my multichapter fics, or i'll lose inspiration to actually write the damn thing. the notes i usually keep are in-universe timelines (so i can keep track of what happened when in what i've written already) and really basic plot beats, anything that i can use to remember what i've planned without being TOO detailed.
you might consider using the "five story elements" as a guide, here's a chart you can use (via https://www.storyboardthat.com/articles/e/plot-diagram)
with the exposition being the "beginning section" where you explain backstory, then the conflict arises, then things get heated, then the climax, then things cool off, then the resolution. pretty self explanatory, and can help you with structuring your story.
the other one that i've found useful is the "seasons" outlining device, where you can divide your story into four "seasons":
"summer" - status quo, idyllic conditions, everything's chill and at a baseline
"autumn" - conflict arises
"winter" - great tragedy/climax section
"spring" - resolution/new beginnings
there are actually a wealth of resources and devices you can use for outlining. ultimately it just comes down to what works best for you. good luck! don't overthink it. first drafts are rough by nature, so don't be hard on yourself. the important thing is to get words on your page!!
