Mastodon is a huge part of the Fediverse. It allows you to control who can follow you (you can set it to prompt you to approve each new follower). You can make your posts visible to your followers only. Each post you make has a visibility option, and you can set it to followers-only by default.
As you suggested, I suspect it’s the rare combination of additional extensions that’s contributing to your uniqueness in a fingerprinting sense.
Firefox’s built in “Enhanced Tracking Protection” already does a lot of this work for you, especially if you select “strict mode.” Go ahead and try this extension if you prefer. But remember to be selective with the extensions you add to your browser in general, as they also present an opportunity to introduce vulnerabilities.
Although it’s not quite a sacrament, at least there are several Christian denominations that have official policies in support of medical cannabis.
https://www.mpp.org/issues/medical-marijuana/religious-organizations-supportive-medical-marijuana/