I have been reading along, but haven't found the turning point--do you mind saying a bit about your "done"? I don't think you posted what you found from the PI.
I don't want to drag stuff up as you are taking a wonderful mental health day for yourself and you deserve it.
Just that those of us (ahem, avermont) who are still wallowing are now looking for stories of that "done" moment.
I hope this "personal" day fills you with strength and energy!