There's reason to be hopeful now. Ernest has posted an update about instance moderators who will be able to moderate mags that are either admin owned (and so otherwise wouldn't have other moderators to moderate them) or for those mags which are abandoned.
Thank you @ernest for all you do and all you have done!
Absolutely do not want to see you run yourself into the ground over kbin matters, your family and your health come first.
I don't question your judgement, but I think the "step down" bit is a bit extreme, even if you fail to meet the deadline. Worst case, maybe let the community appoint a second-in-command temporarily to get some things moving along while you take a well deserved break?