I want something like a "couch to 5k" for emacs, does that exist? A daily exercise that I can do to go from "couch" (no emacs experience) to "5k" (proficient enough to get shit done with emacs and not miss Sublime Text).
I really recommend starting with spacemacs. Guide-key alone (https://github.com/kai2nenobu/guide-key) makes everything SO much more discoverable. Plus, their use of SPC as a universal prefix for useful commands is pretty nice.
There's a built-in tutorial, which you can access from the help menu or by typing "C-h t". There are a bunch of other built-in help facilities, you can get a list by typing "C-h ?".