Gotcha…well, I think the only thing you can do for the catch-22 is to slowly work your way out of it. Someone else might have some other suggestion, but to me, I think that seems like the way to do it.
If you read the protocol on here, it has you start by taking molybdenum amino acid chelate for at least 3 days before you start on any sort of antifungal. That will help greatly with the die-off toxins, as will things like saunas (ideally) or hot baths (not quite as effective). You aren’t stuck here forever, you just have to break the cycle and get those toxins out!