I need advice

I broke up with the father of my kid two months ago. We were living together he was treating me very badly. I moved back to my mother’s apartment. He refused to watch my child. I used to work full time now I’m working part time because he doesn’t want to watch my daughter.

I work Thursday to Sat. He works Sunday to Wednesday. But he refused to watch our daughter. I’m on the verge of losing my job because he’s being selfish. I can’t even afford babysitting. I don’t know what to do. I want to file for full custody. I’m drowning. 😭Any advice