If you don’t even feel anything for him then why don’t you leave? Pack your back or no bags) and get out. You can do logistics and legal stuff when your child is in safety.

If you can’t move yourself, ask someone to take your child temporarily. You don’t have a single person in the entire world who could keep your child for the time being? Relative? Coworker? Neighbor? People at kid’s school? Even your therapist said that you downplayed it to agencies so of course they didn’t get involved.

Why isn’t your child safety come first? Get her out of that house ASAP. Like right now. Take your child to children services. Shelter. Police. Believe children services wouldn’t look favorably that you kept your child in abusive situation that long. Longer you let it go on harder it will be to explain it to services.