single mothers.. good job

Idk how you ladies are doing it. My husband and I are getting a divorce and we've been living apart for about a month now. I've been a stay at home mom, so I have no income. I'm stressing out like crazy and I've put in applications everywhere. I've applied for food stamps and TEA.. and public housing. we already get WIC. and because I'm getting government assistance I have to cooperate with the child support enforcement services. He made it clear that he didn't want to pay child support (he said he'd buy her diapers and wipes) and I didn't want to fight about it since everything has been pretty civil. Well I found out today that they will be putting a packet in the mail to send him and a separate one for me. I have no control over this.. and idk if I should tell him it's coming and make it clear that it's out of my Hands... or just wait until he gets it and when he calls me yelling then direct him to DHS or CSE. I'm worried how this is gonna affect the civility we've been having. And I'm terrified he's gonna try and get custody because I haven't found a job. And right now I'm living with my mom.. but I have to move in 2 weeks. I'm so terrified she's gonna be ripped away from me when I'm all she knows. He literally only saw her 1-2 hours a day during the week when we were together because he stayed up all night playing video games because he needed "me time" and then would sleep until an hour before he had to be at work. And on the weekends he'd only see her all day if I didn't go anywhere.. because if I left he made me take her with me because he "worked all week and needs a break"