Sometimes I feel I'm writing way too much on some topics or repeating the same themes over and over again. It's not just about writing for so long that there wouldn't be anything left to write. It's just that often I take the easy route and write the things that are on top of my mind at the time.
It's a bit low effort, but that's the thing: writing itself is more important than the topic. It doesn't matter what I write as long as I write, even if it's about the same things or repetition (I know I have repeated this thought for many times already).
Of course if I would be writing for a certain audience, or for a cause then the topic would be more important. And I do that, a lot. At work I need to write all kinds of things. There is not much room for creativity, but the ability to write for whatever topic has proven to be invaluable skill time after time.