Felicia, I linked you drugs because you were looking for a "cure for HPPD", and those are the most reliable.
That pursuit, mixed with your eagerness to find information, but yet your lack of skills to properly understand, interpret, and filter what you read, could be a really dangerous mix. Be careful, you're prone to fall into any type of dangerous shit...
"sometimes longer" means a couple of hours more, not days, months, years, etc.
Autophagy is a constant natural process. You could slightly stimulate it, but that's about it.