I put in my notice today! All efforts to come up with a longer-term, sustainable working arrangement failed, so I'm done. Done! Donezo. Donezo the donezerian.
I was very nervous, but having done it I'm so relieved. I can already tell it was the correct choice.
Next steps for this year are to a) decide on a gym, b) deep clean my entire apartment, and c) plan out what I want to do next year.