Glad you think she's acting normal again. I truly believe she is still adjusting to her new home.
My breeder always duct taped a towel (cut to size) to the bottom of her kitty carriers for traction -- but the tape MUST be well pressed down so a toe nail can't get caught in it.
I preferred to roll up a small hand towel into a perch and tape it to the bottom of carrier. Perch should be wall-to-wall. And again, being super sure the duct tape was well attached so no toe nail could get caught. Use good tape like Gorilla tape. I placed this makeshift perch just a few inches back from front door of carrier so my parrot could perch on it but also see out easily. The advantage to this method was I could just leave the rolled up towel perch inside permanently for next time (and wipe up any poop from plastic carrier bottom). My breeder's method also worked well, but if the parrot poops, you have to wash the towel and re-tape it every single time.
I backed my parrots in also, but mine quickly learned to spread their wings so they wouldn't fit inside! lol I learned I needed both my hands, one hand holding parrot (with my thumb over one of their feet) and the other to gently curve over their back so they couldn't spread their wings. ymmv lol
Good luck!!!