Scars could be before She-Ra and potentially for the time when She-Ra was dormant? (Scars can be hot unless they’re from idiocy. Sometimes the mystery is hot, but sometimes knowing it’s from a really stupid decision, the hotness fizzles out.)
She hasn't confirmed this is actually her, but given that it meets all the hints she's given, and the writer hasn't written anything else before or since, even after getting a billion views, means it's most likely this one.