Oh My God Theres Two Of them

Harry goes back in time, this is only possible because Severus created a potion. He takes on the name Hadrian, rescues himself, determind to change everything. Along the way falling in love with Severus of this time. Can Hadrian stop a war brewing by destroying Horcruxes and raise himself? Unfortunately Dumbledore finds out what he's up to what happens then? Slash SS/HP