>> I like the idea of these, but I'd probably break it down into specific categories with attached goals in them. Which maybe people who use this do, but don't talk about it (I didn't see it on their descriptions at a glance). <<

I've seen things like that. Some charts have large sections broken into subsections of related topics.

>> So instead of Hobbies/Recreation, it would be subsectioned into "fiction writing" "journal writing" "setting up portfolio" etc. And maybe that's too detailed for what's intended, but broad categories are just to *waves hands vaguely* for me.<<

Do what works for you. You could even have a Writing wheel.