When you are ready to commit to getting help, when you are ready to help your children, then it is time to move to a place where you can re-gain your footing. You can not fight this beast on it's own turf. You must move to a place where you can find support, balance, mental clarity, and security. You and your children need to be safe first, and this will take a community of people to ensure.
At this point you probably have a number of 'escape attempts' under your belt. You probably have run away after or during a fight to a friend or family member's house. You may even have stayed away for a number of days, until you were lured back by apologies, promises, induced guilt, that fantasy you keep about how he will change one day, etc... This may have become a part of the pattern for you and your family:
you're abused, you run away, promises/guilt, you return home, repeat
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It has to stop.
If you have a child, this running away and going back is dangerous, and extremely damaging.
You need to be clear about your circumstances.
Below are three things you must identify about yourself, before you will be ready to safely escape from the violence. Read them carefully and thoughtfully.