how do I get my body and sexual confidence back

After an extremely traumatic breakup my asshole of an ex has extremely torn up the little confidence I had both sexually and with my body and self. it's been six months now and it's still holding me back from being happy. I want to enjoy myself and my life but I don't feel deserving and I've been made to feel like a piece of dirt by him. I just feel disgusting about who I am.