These are the options. "Followed Users" might be part of what I need, maybe, presuming it doesn't mean "users you've followed", but it's still useless if I can't keep people I don't want from following me.

I'm looking to curate Followers as they try to Follow me and disallow my content from being seen by anyone who isn't a Follower. Without those features, my content is too open for my personal comfort.

All I see are ways to block individual users, which I think would require me to curate my Followers list at all times.

Well, that and adult content filters.