Moving on after abuse

I’ve finally broke free from my toxic physically abusive relationship with my child’s father & I don’t know where to start with getting my life back. I haven’t ate or slept & I’ve been crying so much. The only thing keeping me going is my son. I don’t even know how I’ll go about him having a relationship with our 9mo old son. I haven’t really told any of my family or friends about the abuse over the past few months or about the crazy incident that made me leave him for good. I’m embarrassed to talk about it. Any advice on how or what to do to move forward with my son??