Since you haven't had this snake for very long, she may be looking for the familiar place she lived before. Snakes learn & remember their way around in the
wild...it's very disturbing to them when they're relocated, either in nature or in a new cage. I think she'll calm down with patience, & as others said, I'd minimize
the distance she is falling for her safety. You might try covering at least 3 sides also, to help increase her feeling of security. Mostly I think you'll have to be patient.