I don't have an answer for you but just a few thoughts.
I can't imagine that anything you have done for a few months would cause visible decay that fast, but maybe I am completely wrong about that.
If it were me I would be looking for an underlying health issue. For instance, Lyme can cause rapid tooth decay and dry mouth. I all of a sudden had 6 cavities at once on year after not having a cavity for 5 years. I was sick that year with Lyme.
What I have seen is that all the bacterias and parasites in my body live in balance with each other. My Lyme disease pops up the most when I treat for another infection I have called bartonella. If I get the bart beat back then Lyme symptoms pop up. I wonder what might be popping out from behind the candida for you? Any ideas?