First off- Hello and welcome.

This place is great for info. I would start out by reading the care sheets on the forum (I would direct link you but I don't know how). If your set up is at the right temp and humidity and he has a hide you should leave him alone completely for a week (I know- Its hard). Let him acclimate before attempting to handle Bj. Some times babies can be nippy but usually grow out of it. It just really sounds like his response are from stress.

If you tell us how you have him set up we may be able to give you more specific help.

Good luck