Very interesting topic! I, too, experienced a strogn desire to get rid of my "child self" because it made my life miserable (or so I thought). I can't send it to Siberia because, well, I am from Siberia so I was thinking Honduras or something :-) It took me about 2.5 years of therapy to get to know that part of me and to make it feel safe enough to come out and communicate.

There is a great article about trauma and "ego states" that "self" splits into as a result of trauma nacronline.com/misc-articles/recovery-from-childhood-abuse The child self is container for the trauma aftermath (fear, shame. despair) so it's only natual that after many years of abamdonment this part of us is not cooperative and hard to deal with. Just like a regular child who is having a very hard life and feels no love or support from others. We have to be patient and we have to hear that part's story in order to heal. That article describes in detail all the steps that need to be taken in order to integrate that part of us.

The only problem with that article is that it suggests Christian approach as a main instrument of healing which might not be a a preferred method for everybody.