How do wives to blue collar husbands do it?

I am taking care of my son alone for 18 hours a day. 18. Hours. My husband gets home exhausted. He’ll try to help but he is so tired that it usually ends in arguments. He does night routine every night but there is a cut off, if DS is not in bed by 10, he refuses to help (which I partly understand because he needs to sleep but that doesn’t make it any easier). I now have sole responsibility of night wake ups and he refuses to help. He says, “I’m going to bed at x o’clock no matter what”. I am drowning. I am doing 95% of everything. My child is not the problem to be clear, I am just exhausted. I am also in school full time but have no time to work on it since the only time I get to sleep consistently is during the day. This is a far cry from how we functioned before this new job. We used to have a great routine down. He would help with everything and chores were equitable. I had time to do my schoolwork and relax. But this new job ruined everything. It’s a pay increase but I honestly prefer struggling and feeling better mentally than how things are now. How do you ladies do it?!

Edit: Guys, my husband is a good husband and father. He had a hard week acclimating to this new job and he was irritable because of it. We talked it out, he apologized.

I took a lot of y’all’s advice. Thank you so much!! We made a plan: 1) night wean completely 2) move bedtime up to 9 3) meal prep every weekend 4) I’m getting a membership at the Y so that I can do my schoolwork at the cafe

So thank you so much again to everyone who lovingly helped me figure it out!

To everyone who bashed me or my husband, this is one small part of our lives. People tend to come to the internet to vent. My husband and I are usually rock solid. We argue and say mean things occasionally like anyone else. I hope that gives some perspective.

Also, we did the “Fair play” game like someone suggested and he saw the large difference in responsibilities. He is taking all nighttime routine and helping as much as he reasonably can at night. We made a chore chart. Woo hoo! Hopefully this all works lol.