Help a Family Break Free from Toxicity

I would love everyone to know that Steve went back to his old ways. He's posting pictures like we're a happy family, but it's actually to torture me. He's posting pictures, followed us down because he can't be away from his kids. I made sure I would co-parent as much as I can amicably. He went back to his drinking ways again and has sent texts to friends of mine, trying to make them go against me down here. I would love for everyone to please help and message me because I don't know what else to do here. He made sure I don't have any car to get around, and if I don't get back with him, he won't help with anything for the kids. He has said he will destroy me. I've kept my silence long enough. With my family constantly in my head to leave him, which I made the choice, and constantly him being toxic to the point my poor kids are feeling it, it's time I say I need help with anything and everything to get him away from me. Nobody has reached out to me because they all believe his lies. He's not a good person, and it's a shame I have to deal with this until my kids are of age. I do not care if this is gonna embarrass me, but he's done this for the past 12 years to me. He has put my family through a lot. My kids can't be around this anymore. These kids cannot be feeling this.

Anything will help if I can have the courage and not be silent anymore.