When you were little, and you were abused, the little you had to shut up about her feelings, because nobody took notice of them, and she had no power.
You are still the same. She is still there, still shouting to be heard, still crying. She tells you when she's uncomfortable and you don't listen. Then she tells you when she's unhappy, and you don't listen. Then she tells you when she's hurting, and you don't listen. But you hear it all. Start to take care of her... nobody ever has, but the reason this thread feels good is because she's spoken, and she's being heard and responded to. Only have relationships/friendships, from this moment forward, that give you the same feeling: I am heard. My feelings matter, here. I am being listened to, and my feelings are being respected.
Your first friendship to cultivate is with her, that little girl inside you. When you start to take notice of her, and walk away when she wants to walk away, you will then have boundaries. She is your heart. Respect her. She is who you really are, your individuality, your self. She is the bit of you that makes you you, rather than anybody else, or an android. She is a child, and she is your responsibility. Don't put her in any more places that make her unhappy.
You are not powerless, now.