Adult separation anxiety

My hubby hasn't been working for nearly a year. He had been doing side jobs here and there whenever the opportunity came up. He's going back to work tomorrow and I'm feeling a bit of I guess separation anxiety. I'm so used to having his help with our 3 yr old and we have a new born right now as well he's been helping me with. Im just not used to being alone anymore . I've been going through post partum depression (yes I know , get help) and it just makes it worse. It's just depressing to feel like I already know how it's gonna be. I'm gonna be alone all day . I have no one to talk to. I just need to get this off my chest.