Isn't your snake still fairly young? If so, this behavior is completely normal. You are a predator to them. It is only natural for them to be scared when you are handling them.
Eventually they will calm down and be much more relaxed. Denying them hides is not going to help "tame" them. If anything, it would make it worse.
I have all my Bps in a rack system and very few of them get hides. Maybe a piece of paper to hide under. They are hiding 90% of the time, the other 10% being at night or around feeding time.