A mother and children in need of help.

I am asking fir help from anyone that can help even if its a little bit. This is our story. I was with my kids father for 10 years in that relationship i had a daughter in 2010. She is my world my best friend my mini me she never left my side. Her father was very abusive physically as well as mentally. She witnessed this for 7 years i am ashamed to even say. Alot of those 7 years he would kick me out for just random reasons usually wanting to cheat. She always went anywhere i did. So needless to say i was pretty much a single mother those 7 years as well. Then in 2016 i had a son. My daughter feel in love first sight and wanted and did learn everything there was about caring for him with me. I did not live with her dad my entire pregnancy with my son due to he sexually abused me out in our yard. Our neighbors his cousin had to get him off me i was 4 months pregnancy at that time. Accusing me of cheating and i was 100% faithful the entire 10 years. Claiming my son wasn't his prolly. And i ended up moving back right b4 i had my son and lived there only a month after we brought natham home. I asked him about a girl he cheated on me with off and on the whole 10 years. And told him he never held his son which was true he didn't want anything to do with him like he did our daughter. He ended up taking nathan from me mind you he was premie and just git out the nicu and put him on the floor and was hitting me our dog was going berserk it was a blessing our 70 lb dog didn't trample his little body it was so close. He then picked up my baby and continued to hit me while holding him i cam remember him squeezing natham real hard. He eventually got me pushed outside into the snow and locked me out. This is the type of man he is. He didn't hold a job our whole 10 yrs up until the last year he made good money 50 hr. And ended up swiping the kids ss cards from me during the time period i was last there he filled the kids who he had not supported the whole year before we lived with my uncle and he never offered me a dime to take care of my framily when he kicked me out. Hee would even keep my food stamp card from me and i worked to take care of us. He ended up getting back 10 grand on taxes. At this point i was finally done after putting me and my kids through anymore of this. To this day if i would go back he would let me be a mom. He hired a lawyer and took my kids from me i don't have money to hire a lawyer and my kids if he gets his way don't even get to speak to me the only reason they did for the past few months wad his mom. He never has them his almost 70 yr old mom and dad who is also almost 70 and is disabled who can not even pick my son up which again leaves my daughter to have to do it for him. do my daughter says she feels like their slave she keeps my son at night ay her gpas bc she says her house is to nasty to stay at. She wants to come back to her mom so bad. When he took them she was the only one who even knew how to make a bottle and has been his caretaker since. He isn't talking he isn't potty trained almost 3. She does her best she don't deserve this she just wants to be a kid please anything will help lets help my kids get the life they deserve. Money is the only thing holding me back at this point going up self represented ignorant to the law against a 16 yr lawyer i have not had a chance i need a chance my children need and want their mom. Please help me get them out of the hell he is putting them through. She is broken without me. And we have been completed cut off any contact again his mom blocked me from speaking to them i don't know why i would assume he threw. Fit my kid can't even say my name and he freaks out i'm gonna attach a video she posted on facebook after i commented on one her videos i found. He also took me to court and got me ordered to pay 700 a month child support and I can not even afford. I am behind on that. And would like to take him back to court for that as well he makes 50 a hr and I make 500 every two weeks at this time. I lost my cleaning clients so the job I have now is just part time. I am going to fight him either way but I know he will have a lawyer as soon as I file any thing against him. And it is near impossible for a individual to represent themselves against someone with a attorney. Thank you for any help and even just caring about our story. God bless