Sorry to hear this
I still think it is insecurity on her part rather than hatred. If as the counsellor says, there is a question about maturity, then that is probably part of the reason why she cannot adjust to your previous children. Childish jealousy.
Can I just say, I notice that you keep refering to her as 'my daughter'. Please remember that she is the daughter of both of you, when the time comes for separation. After all, considering the things that happened to you regarding your other kids, the last thing you want to cause, is the same situation for your daughter in the future.