My mom wants me out ..

My 16 year old little sister is pushing my mom to move out to New Jersey or somewhere in upstate NY and they are now going for it. All of a sudden my mom is pushing me to move out after she insisted for so long that I stood living with her until I finished college but that isn't the case now. It pisses me off because in the past when I had the chances to move out she insisted that I stayed at home with her and my girls. I have an SO but we can not live together until we are married (his father is a pastor and his family is very religious) and I am raising my girls on my own. Their fathers do not help me at all and my job is only part time when I was "hired to work full time" so I am looking for an actual full time job but I haven't had any luck yet. I would go with my mom but that would mean me leaving my resources, my daughters have an awesome day care and they actually pick up the children and drop them off. I am also getting help from the gov't for that while I work. I was really looking forward to going back to school this September and becoming a nurse   It seems like everytime I try to do good something always pushes me back and moving with her wouldn't be an option. She makes it clear that she wants me to move out on my own but I really can't afford it right now. UGH! I don't know what to do anymore   I'm trying ..