Zettelkasten is not easy
Zettelkasten is not an easy fix for all your writing problems. It takes a tremendous effort to go through the motions that are required for the upkeep of a Zettelkasten. I can say with sincerity that it is just easier to generate content for a blog post or an article with other note-taking systems.
But if you are in this for the long term, with your interests teeming in multiple disciplines, I believe Zettelkasten is a worthwhile effort.