Hey you young popular kids... how do I use tumblr...?

[FirstLight]

Im a gen Xer and have gotten very settled into my social media use. I dont really do much twitter, maybe scroll around once a week. I belong to a few FB groups etc...

I asked one of my fanfiction writers groups about where to find illustrators in the group or fandom to see if they be interested in collaboration...and everyone says tumblr and Im like...what? who?

I have an account but have no idea how to start getting it going... or finding people, especially ones I know.

Should this be something I am blogging in daily? what's the point? Is it like Twitter and Instagram?

Any words of wisdom would help! Lol