You should start using Obsidian. It's a note taking app. Its graph view is nothing short of astonishing. https://youtube.com/shorts/_EpWCw-X0T8?si=KDBXm4lPwtGGTbj2 You can input your existing writing and notes, reference one relevant document in another, and then display it on graph view to see how all your documents relate and connect to each other.