Well, I've submitted my second PhD application, but this time it's been sent to Health rather than History. I've intentionally tried to write the statement in a way that relates more to the history of medicine, and keep a positive tone about my project rather than worrying about Covid-related issues (like accessing archives) so it would be harder for Health to reject it, but I still have secondhand anxiety about the whole thing after what happened last time.
I've notified my supervisors, my mentors and the head of my uni's doctoral college about the submission, so at least I have a support network (including my parents and my boyfriend, of course) no matter what happens now.