Domestic Violence Survivor... does anyone feel this way?

I have been away from my abusive ex-husband for almost two years now, but I feel like a completely different person that before. I understand this is normal, but geez... how much longer will it take before I feel normal again? I have a really short fuse when it comes to my kids and it reminds me of the way he used to be with them. I have a hard time talking to people because I feel detached from the world they live in. It's like if I talk to them too long they're going to realize I'm some kind of freak. I spent 8 yrs. with this man and he never let me or the kids leave the house. I know it has affected them because every time we go out in public they act up. I can't afford counseling and my medicaid will not pay for it. How can I get myself and my children back to normal as far as emotional control and social interaction?