Struggling with online school

I work graveyard (8pm-6am) while SO works days. Its what we have to do to keep a roof over out heads. Now with online school not only do i have to wake up early i have to still keep waking up when the baby cries or when they are hungry. Its so hard and its only been a few days. I am so sleep deprived. My SO is so stressed out cause he knows how hard it is right now for me. Im trying to stay positive but hes just feeling so bad. Anyone else struggling really bad? What can i do or say to make him relax a little and not beat himself up over this. As much as i hate it, its just something that i have to do. We both have to keep working and kids still have to go online school. Theres no way around it since we dont have family around and obviously child centers are open and if they are we cannot afford them. I just feel so bad for him. He helps me so much around the house but he thinks he has failed as a provider because we both have to work.