Freaking out

My fiancé and I split lastnight. We also have a 4 month old. I don’t know what to do. I make 10.50 an hour where I work. How am I supposed to support myself and my child? I wanted to make our relationship work but he hasn’t put in any effort. There’s no intimacy, we don’t do things with each other and he’s always worried about money. I just feel like I’d be happier single but I’m so scared. I’ve honestly never been on my own.