I've been through similar, and I can promise you it gets easier and better. Once you get over the hump, it will get better exponentially every day.
I feel like I am worthless and the things he said about my body have stuck with me. I feel disgusting and ugly.
Nooooo! Those are HIS words, not yours. And he probably never even thought those things, only said them to make you feel bad and control you.
You are DEFINITELY NOT disgusting nor ugly!
You are DEFINITELY NOT worthless!
You are a seriously tough badass motherfucker and nobody should ever be stupid enough to fuck with you!
You lived through some of the worst shit that can ever happen to a person, and you dragged yourself out to the other side.
You got yourself and your son out of hell and into freedom.
You did that, as terrifying as I know taking even that first small step was - as paralysing as I know even coming to the realisation was, as overhelming as even that first tiny idea of escape was - YOU DID THAT.
YOU FUCKING DID THAT!
I'm sure you don't feel like that right now, but it's absolutely true. You should be extremely proud of your bravery, your toughness, your mental and physical fortitude, your abilities, your resourcefulness, your motherhood, your protection of your son.
Someday you will. I hope and pray that it's soon. You deserve to be bloody well proud of yourself for what you've accomplished and the insurmountable odds you've overcome.
I for one admire you tremendously. Sending you hugs and strength and admiration and love. I hope you can feel it.