Divorcing and called Police

Husband and I (40s) have been separated for the last year trying to work things out. Mostly me waiting things out and focusing on myself and hoping he turns around. He's got a bad alcohol addiction and seems to maybe be abusing adderall. He's been erratic, violent and verbally abusive, lacks any type of impulse control.

We started the divorce paperwork and he showed up at the house in the middle of the night in my face starting conflict, I called the police and he left. Thankful I'm getting out but greiving this mans choices and how he has caused so much damage to my life, his life, and our children. I have to keep reminding myself he did this to our family. My fault is staying as long as I did and I should have protected everyone sooner. I hope he hits his rock bottom but I'm not so sure this is it for him. It's brutal watching addiction ruin a person.