The inner child....
well - in my case, it was sorta like someone hit the pause button on the movie of "me"... there was a whole me that really wasn't part of my understanding, feeling, sensation of "me". I had to get re-acquanted with that me; had to earn her trust, too... had to prove I wasn't "one of them" to her... because that part of me knew how to hide very, very well - she could simply become invisible and "stop being" through hibernation, going dormant... and she knows how to cause me trouble, if I ignore her!!
I did find ways for her to exist - now. Ways to finish growing up; to heal from her hurts... to restart her from where/when the pause button was pushed.
Hell yes - she's what would be considered "rebellious" by those who were made uncomfortable by her impertinant observations of an inconvenient, yet undeniable truth. Because of her inpenetrable walls of defense - I do X this way because it's the way I do it, even if there is a better way - she was labelled hard-headed & stubborn; rebellious. There were some adults then - and people now - who understand and appreciate that aspect of her. People who helped.
There is a literature and even language for talking about one's inner child. Some of it "fits" for me - but much of it didn't. Found I had to make up my own terms, descriptions, explanations... though not everything about a relationship with one's self is explainable. (I think it's sorta like "twin-language"). Inner child work is quite delicate and challenging - but just as rewarding as raising a child, too. Have some kindness and openness for whatever your inner child is "bringing up" right now... listen to her story. This path of work is immensely useful and powerful.
Related to it, is the body of information about attachment theory - how the mother/child bond affects one's Self, personality, etc. If you have trouble looking for inner child stuff, try getting there through attachment theory.
One of the books I started with, was "Healing the Child Within" - Charles L. Whitfield. I started with a therapist, which I think was important for me. A mom-substitute to explore my relationship with Nmom; to hold my hand and tell me it was OK - what I was feeling was natural; normal. I don't think I could've faced everything without that encouragement & safe person. It was important to me, to have someone to help me process all the stuff I was discovering about myself. I didn't quite believe what I was telling myself, ya know??? (oh... the power of conditioning and the politics of power in a parent-child relationship!)