As I was not 9 when I lost all of my hearing I can not say. All I can say is, that as I was losing my hearing, I basically taught myself to read lips.
Lotte does that. Have a look in her blog, search for "Take off the ears"
I have a hearing family and grew up in a hearing family. We did not know about anything for the hard of hearing or deaf except that I did have HA's from age 7-10 and not again until 38.
Lotte had HAs from 1, CI from 2¼.
For me, it was sink or swim.
Lotte swims... happily, not due to extreem choices.. She loves to swim..
All I am saying is, don't sell your child short.
Never..
If she did not have any amplification, but sis have ASL or whatever sign is in your country, she will learn to adapt and go from there. Most children can learn to adapt.
And with whom will she use sign?
Even those with multiple disabilities learn to adapt. I remember days when my HA batteries died, I removed them, put them into a cloth bag I was given and then put that into my lunch box until I could go home. Home at that time was 13 miles from school, so I couldn't run there. Life is a lot about adapting to your surroundings.
And she did, she does, she will...