One thing to consider as well is to think of it as being defensive and not aggressive. It is not looking for a fight but trying to ward off large threats that may try to eat him. I have had hatchlings that were defensive and struck a lot and then I have had others that were chill from the get-go. Almost always they do grow out of it as they get larger and conditioned to the presence of humans so I would not worry too much and just practice slow/deliberate movements around him. The other suggestions of adding furniture, closing off the sides and back and letting him adjust are excellent as well. Good luck and I am sure all will work out in the end.