Possible if she's crashing down, but if she's hitting windows or walls, that's different. Flying around the cage is different than free roam of the house/room. If that's happening, if she'll hang out on your hand or arm, you might try walking around with her and showing her all the windows, mirrors, glass doors, etc. one at a time. Kind of like giving her the grand tour, but showing her where the hard surfaces and boundaries are. Take her right up to each one, explain what it is, and let her explore by touching or tapping her beak to them. I always do that with mine when they're new, and then continue every so often to reinforce the knowledge. Even then, accidents can still happen, so window coverings (curtains, blinds, sheers...) are the safest go-to.