How can I make content creation more seamless?

What I’m trying to do

Make my vault less of a mess.
I want to use the notes I’ve captured to create long form content–incorporating unrelated topics together.

Things I have tried

Nick milo’s ACCESS structure. The hashtags and Notebox dataview gets quickly outdated.

I want to go from idea (notes) → tweet. I have over 5000 notes, but the organization is a mess. Likewise, I can’t utilize any ideas to add depth to my tweets.

I suggest you to consider using structure notes.
If you are familiar with Nick Milo’s works, take a look at the concept of Map of Content

Yesterday I’ve seen this video, the principles inside it are very valuable, even not using things like Zettelkasten and Folgezettel.
Building structures that organize our notes is a strategic investment.