It's totally normal. All babies are fearful. Some are more fearful than others. Sometimes, you just have to wait for them to grow out of it.
But, in the meantime . . .
Has she eaten for you yet? If not, I'd say, don't worry about handling. It's more important to start them eating. Handling and moving items in the cage are secondary to establishing a feeding routine. Even then, a good rule of thumb is to wait for a new baby to eat three consecutive meals before beginning regular, non-maintenance handling. That's kind of a good barometer for determining whether or not they're comfortable and settling in well.
In the future, it may also help to not move things around while she's in her home, but wait until she's out in her holding cage/clean shift to rearrange anything that needs to be fixed -- messing around with the cage while she's in it is predator stuff. Way less scary to do it when she's not trapped inside with the Hand Monster rattling around. (Unless you're just talking about removing and replacing the water bowl for cleaning. That makes sense. In this case, to minimize activity for very nervous snakes, duplicate bowls really come in handy.)
Speaking of the cage . . . That may rather large cage for a little snake, even with all the clutter. Might work, might need to temporarily downsize for her. I see the half log, which many BPs feel very insecure in. What is the other hide?
Hopefully, more folks will chime in.