`I'm so sorry all of this is happening to you. It's hard after years of being verbally abused to find whatever strength that you have to get out and leave for good. Its hard enough when you are physically healthy and this happens.
The best thing to do is find a shelter. If that's too drastic for you then finding a support group first. A mixed issues group is very helpful. Where a group on women get together and just talk about their issues once a week without being interrupted by being given advice. It really does help to talk about the issues you are feeling and sometimes through that you see how you can get out and help you and your children. A support group is crucial for something like this. Women helping other women is wonderful. It strengthens you and encourages you.
I google searched some things for you.
http://helpforsinglemother.net/moms-leavin
g-an-abusive-relationship/
On that page they even have a list of shelters to go to.
You are stronger than you realize.
"Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. It is our light, not our darkness that most frightens us.' We ask ourselves, Who am I to be brilliant, gorgeous, talented, fabulous? Actually, who are you not to be? You are a child of God. Your playing small does not serve the world. There's nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine, as children do. We were born to make manifest the glory of God that is within us. It's not just in some of us; it's in everyone. And as we let our own light shine, we unconsciously give other people permission to do the same. As we're liberated from our own fear, our presence automatically liberates others." (A Return to Love: Reflections on the Principles of "A Course in Miracles", Harper Collins, 1992. From Chapter 7, Section 3])