Yes I do believe she can be unfrozen and taught new things. I am very aware for me that often there is still a lot of fear in those places, which makes it very hard to trust, but the more I have been able to feed in the safety, and more I have been able to begin to release and express some of those emotions and feelings, which is what she has been so trapped by, the more freedom I have been able to find and more that part of me has been able to grow, and I do believe that once all of the emotions which there was no way I was able to express at the time can be expressed and released, that this will bring freedom, and believe that with you that as you work through all those feelings, which at first may well come out as temper tantrems, it will bring a real release, and will bring freedom.
For me I am still on the journey, but do know that the more I have been able to do this, the further I have come. I am very fortunate that I have a very safe Christian ministry place, where I am having ministry, where they understand totaly about the inner child, and in the safety of this place have had times when I have been able to just feel totally like a little girl and at one weekend on a creativity course was able to just cry and cry and cry and in that place just felt so much that I wanted a mummy and felt so much the grief of everything which had never been able to be, but within that, even though it was so hard, being in that safety and being able to feed the safety in and really allow myself to express those things, which were so much deep inside me, really helped me so much to be able to find so much more release inside me, and brought me a long way on my journey.
For myself I also know I began my journey of looking into all the feelings of an inner child, well before I was having the Ministry at Ellel, when my counsellor at the time reccomended a book to me called "rescuing the inner child" by someone called Penny Parks. At that time I began to work through the emotions and started one of the exercises which was suggested in there of writing letters between the different parts, and know for myself that I found this very helpful in my journey and though I cannot find where my copy is now to look into it again and see how relevant it may be to you to look into, would suggest that you may want to look up the reviews of it and consider whether the book may also be helpful to you.
I really hope what I have written can help you in some way and do really believe that that little girl inside you does deserve so much to be able to finally begin her journey of being able to release and express all those emotions of guilt, shame, betrayal, anger, disgust..., so that you really can find release and that in that little girl place you can learn to believe that that guilt and shame do not belong on you at all and that the anger and disgust really can be placed in the place where they really belong, which is not on you but on your aunt, because everything which happened really was not your fault as a little girl, and you really do deserve the freedom to be able to express all of these emotions so that you can work through and find the freedom and release which you so deserve.
God Bless
Helen