I appreciate the effort, but came to the conclusion (years ago) that I don't really want to spend more time on "looks". My site loyce.club was never meant to be used on it's own, it was simply a place to dump data that I couldn't fit in a post. And it kinda got out of hand, with currently ~15 million HTML pages. If I'd ever change things, it should be by converting everything to a database system to make it much easier to change things, but since I still know nothing about databases, that's not going to happen any time soon.
So much to do, so little time....
You cannot do everything by yourself. I noticed there's plenty of people looking to improve the tool you have built. Have you thought on making it open source? Allow people to contribute and guarantee it will be maintained in the long term? What would be the pros and cons?