please help!!!!!!!!!!!

Hey ladies. I need help 

So my son is a little over a year old. During my pregnancy the father wanted an abortion. I told him no. Then it was this and that and the other, constant fighting and arguing with me. After my son was born I was going to give him my last name. I felt coerced into making the decision to give him his fathers last name, or else he wouldn't see him. His father argued with me the very first time he ever met my son because of the last name. 

Since this, (and yes I did give my son his last name.) when my son was 3 months old, I had his father watch him at his house while I went to school. My son slept for 6 hours without waking. I fed him at 8 (and he was always a 3-4 hr feeder) so he would been hungry about the time I dropped him off, which was 11:30. His father wrapped our son up in multiple blankets, causing him to become overheated and sleep. Did not feed him, refused to feed him even through my multiple phone calls and text messages. I finally just went and got him at 4, and was able to feed my son at 4:30. He was so hot he was still asleep when I got there. My boyfriend is cpr and first aide certified and has emt training so I didn't feel I needed to take my son to the hospital. He was ok, but awfully hungry and crabby for a while. 

After this incident his father overfed him. A baby that young drinks 3-4 oz of formula per feeding. His father fed him 10oz, causing my son to vomit profusely for hours after I got him home. His father did that to him 2 times before I said enough is enough. 

He's threatened saying my son is not his, wants a paternity test (which I told him to get and still nothing) then turns around and constantaly argues me about visitation. Which I have turned after those incidents into supervised visitation until after court. 

He visits our son for a max of 45 minutes. That's it. Per visitation. He doesn't try to get to know him in any way. 

In Alaska, only ocs can terminate parental rights, which is what I want to do at this point. Especially after reading the case file that he had with his ex, where he has refused feeding their son, has left their son outside alone so he could go sleep, has told their 4year old son things no 4 year old should ever hear, causing him to return to his mother so angry and upset with her. 

He has blocked her with his car, making her not be able to leave with their son in her car, pounding on her windows and yelling obscenities at her. 

Has refused twice even after court ordered visitation to give their son back to her, and this is after my son had been born, so this is very recently. 

He has stated in court records that he is emotionally unstable. 

Here's my issue

Even after all of this, Alaska refuses to terminate parental rights unless ocs becomes involved and finds a legitimate reason to terminate. Because my son is not in immediate danger, they have refused to do anything. 

I'm terrified he will kill him. Not meaning to, but regardless still kill him. 

I can't afford an attorney. I have to do this myself. I need help. I feel like no matter what I do no one legally will listen and help me to be able to protect my son. 

Please. Anyone. Help. Any advice is greatly appreciated. And yes I know. Shouldn't have ever been with this man, but i was young and dumb and I ended up with an amazing little boy.