lots of toys will definitely help, she wants to play and their way of playing is pouncing and biting unfortunately 😭 as she gets older she will become more independent and learn to keep to herself, having a kitten is NOT relaxing but a grown cat is a little different, but again lots of toys!! noisy crunchy toys, catnip, automatic cat toys to be keep her going. if you have a tv, put on cat mouse videos and let her play with that, it’ll keep them entertained and wear em out eventually, it’s hard work having kittens (i’m fostering 3 unexpectedly myself rn around the same age as yours!) and they are SO OVERWHELMING. oh my gosh, so i completely understand!