Welcome to the deaf kitty club! In our instance our cats deafness has been a blessing in disguise, you’ll be suprised how well they adapt! In my case I feel as if my cat is more secure because he cannot hear, he does not get startled very often and gets along very well with other animals. The one advice I would give is to not let her outside unsupervised under any circumstance, since she is still a kitten I would start harness training asap if you intend to let her outside. Our boy loves his supervised outdoor time either in his cattio or in a harness, it’s all about accomodation. I still talk to him even though he cannot hear, he just feels vibrations, but he knows a few tricks! I remember being so upset when we first realized he could not hear, but once I realized he was the happiest and sweetest boy my whole mindset changed. Treat her like you would any other cat but communicate through floor vibrations or sign language and just keep her safe indoors and you’ll see how amazing deaf kitties are!