I'm starting a blog-blog, and I'm trying to get all my social media ducks in a row. So I made this Tumblr thing. And you know what, guiyssse? I AM TERRIFIED.Tumblr is the most confusing to thing in the world to me. Is it like Twitter? I just post pictures and gifs and funny jokes? How does the tagging thing work?Who wants to help an old person understand this thing?