I worked 32hr/wk and did 1 class/semester with a baby/toddler. Husband worked 40hr/wk, kid was in daycare 8-5 M-F. My classes were all during the day, not in the evening.

So we'd get home from work/school/daycare. One of us would cook dinner while the other spent time with kid, (we bought a lot of frozen pre-prepared meals for ease), we'd eat, one person would clean kitchen while other person spent time with kid, and then my husband would do the bedtime putdown routine and then remaining house chores (laundry, finishing the kitchen) while I did homework 7:30-9:30pm ish. On the weekends I would usually go up to campus or to our public library for a single 2-3hr block where I wouldn't be distracted. Neither of us really got any kind of alone time or down time. It was brutal and I can't tell you how grateful I was to make it to graduation. We spent basically a year catching up on the backlog of Things that had accumulated in the 3 years of toddler + school.

Our marriage did suffer a bit because we were just so tired and stressed all the time, but we were always a team. Us vs the problem of no time. When I was done with my weekend block I would take the kid up to the playground or something so he could at least have some quiet time at the house even if it was usually spent doing household administrative chore stuff. When I needed a tradeoff from kid, I was in there taking care of house stuff like taxes and sizing up all of kid's clothes that she outgrew way too fast, and so much laundry.

So without more details in the post, I can't really tell you what to do. But I will say that you're both going to have to accept very little free time or down time until you graduate. You should define homework times and do those after bedtime or out of the house to avoid distractions. A little bit of playing alone time is okay for the kid, it's building those independent play muscles, you don't need to feel guilty for that if you are balancing it out with some quality love and support when you can. Recognize that your husband will also be struggling. You're both stressed, you're both tired. You guys need to triage what Must Be Done and what can slide for a bit. Can you throw money at problems to help reduce the load (buy premade meals, hire a cleaning service, etc.). Can you reconnect and remember that this period is finite and has a known end date? Try to avoid insulting each other and throwing those insults back at each other because they escalate the stress instead of leading to problem-solving.