Divorce while conditions removal pending

[NewMom]

My US citizen husband and I got married "in good faith" 4 years ago in my homecountry, and I got the conditional GC 3 years ago when we came here. We filed the petition to remove conditional status 1 year ago, but it is still pending. Meanwhile, I had a baby 6 months ago, and my husband and I got separated about a month ago due to him going nuts (was diagnosed as having a psychotic episode with paranoia by a psychiatrist) and starting to drink heavily. My husband has never abused me or our baby, but in his psychotic state he started accusing me of marrying him just to get over here. It's not like our marriage was perfect all along, we had our share of problems. I am filling out the divorce papers (haven't filed them yet), and I had several questions:
1. What happens to the petition we filed a year ago. Do I just let it go and see what happens, or do I need to resubmit a petition for a waiver now or something? I am sure I could provide sufficient reasons for divorcing my husband if I need to file for a waiver, but I doubt I would have enough prove of "good faith" in marrying him, as even my own family was doubting my reasons for that. What can I tell you, I guess sometimes you just don't think clearly...
2. I moved out of our house, so the address has changed. Do I file a form for change of address now or what do I do?
3. I don't really care that much if I'm deported, as I have been thinking about moving back to my homecountry myself, but I don't want to be separated from my baby even for a day (my baby is a US citizen). I don't want to have any deportation procedings against me where I am put in jail or something like that, or ordered to leave the country and leave my baby here with my husband or whoever else. This is the thing that scares me the most in this situation. Can this really happen? Can they order me to leave and keep my baby here in my husband's or the state's custody?
As you can see, the whole thing is a total mess and I just don't know what to do. I can't afford a lawyer, as I earn barely enough to cover our rent and living expenses. Can anyone here give me some advice on what to do? Thanks!