Does he even have properly-sized hides? One on the warm & one on the cool side, so he feels safe? To him, YOU are a "big ugly predator that's about to EAT HIM!"I'd suggest getting over yourself, & put HIS needs first. He's afraid of the giant that keeps coming after him. What else do you expect him to do? His instincts are to defend himself the only way he can- with his teeth.
Snakes can learn, but need patience & most of all, YOUR understanding. After he's feeding regularly (at LEAST 3+ meals with NO handling attempts by you), only then can you start to get to know him, patiently. I'm more than willing to teach you how to do this (I have many years of experience taming snakes) but only if you're committed to learning. Are you?