On top of the thermostat and thermometers to ensure your snake has a happy home, I'd also recommend leaving him undisturbed (that means no handling) for at least the first week. Don't feed, don't touch. Check on him only when you need to. This will ensure he feels safe and relaxed in his tank, and make him more receptive to you handling him in the future! He'll calm down in time, provided you give him time to de-stress between handling.

I have a new BP and she can still be shy/skittish at times. It takes patience and time to get them used to the idea that you aren't going to eat them!