Ga divorce help, please!!?

My husband and I have been married for almost 3 yrs. Due to his abuse (physically, verbally, mentally, etc.), we seperated 2 yrs ago and I got a temporary order of protection. The Judge stated in open court that abuse had been established but after a few "hearings", we were given mutual restraining orders although my ex never made any claims of abuse of anything else against me. We had those dropped about a yr ago. He was represented by an attorney, I couldn't afford one so I represented myself. He barely paid child support that he was ordered. About 6wks ago, he moved back in w/us (his child and I) and now I see he's still the same way. I want a divorce and to be done w/this. When we got the child support order, he had gotten laid off to prevent paying so much in child support but now he's making a good living. I was working but when we reconciled, he wanted me to stay home because I'm a hairdresser and he's jealous so I quit my job. Our plans were for me to just return to school in the fall and I still plan to do so. I had to file a police report about 2wks after he moved back in because he got drunk and destroyed some of my property and held my son and I in our house for almost 2hrs. What can I do about all this? 1.) Can he be made to pay all back child support. I never had it dropped while he was living here but he wasn't paying. 2.) Can I get another order of protection against him? 3.) Can I get spousal support and how much? 3.) I can't afford an attorney, since he can, could the courts order him to hire me one, too? 4.) Any other insight into this mess I'm in? 5.) Why didn't the Judge order mutual restraining orders? I REALLY appreciate any and all help but PLEASE don't tell me to contact an attorney because noone will help me without money and I'm broke!