In my own experience, when one goes through childhood trauma, they are immature emotionally. I think that's due to changes in the brain. Be patient with her. She's doing pretty well from what I can read. She works, goes to therapy.

And again, my opinion, if someone is constantly criticising you, it's going to make you feel bad about yourself. Words hurt. Even if you don't use them harshly. People with mental illness are very sensitive and usually already have self esteem issues and find it difficult to be happy with themselves.