How do single moms do it?!

I am not a single mom, and fortunately have a very lovely husband who is super helpful. He is a flight nurse in a different state and leaves for 5 days 2x per month, and my baby is 10 weeks old. I am dying on my own! My baby is colicky, has CMPA, reflux, and I don’t have much help nearby. Just looking for advice on what those single moms do, how to keep positive, and give your baby all they need. This is not for the weak!