In the transcript the doctor mainly focuses on vitamin D and folate, but also recommends a supplement with saw palmetto and zinc to inhibit 5-AR, which is a surprise since that’s like taking finasteride.
But what the OP has done is completely different: use Proviron to boost DHT, then discontinue to somehow restore the whole system.
If it works I guess it doesn’t matter what the mechanism is.
But we don’t know if it will work in others; we have just one report.