What do I do

My husband doesn't appreciate me. He makes it feel as if I don't offer anything. I just had our second child four months ago. We recently moved to a different state for him to work with my dad and his hvac company. My parents had graciously opened their home to us, to stay six months to a year. But the way it's looking we won't be moving out in four months. He says if I don't have a job by then, he's leaving and he'll make it by himself and he'll just send me money.

I have been applying, I also had a job shortly but had to quit because of childcare. (My check would only cover childcare alone.)

*at little insight, my work experience is only retail and fast food supervisor roles. I don't have a degree or any certificates to land me a higher paid day job.

He feels I'm not trying my hardest because I'm not putting applications any and every where (even jobs I don't meet the qualifications) and I'm not calling everyday all day.

On top of all this I've been battling postpartum depression. I feel as if I'm just existing. When I told my husband this he pretty much said "well you need to work, you can always join the Air Force"

Idk I'm slipping again and idk. Idk what this world wants from me. I feel like I can't do what my family needs from. I feel lost and confused