My situation is a bit different than yours but has enough similarities that I think it might be helpful.
I quit my job a couple of years ago when my youngest was less than a year, both to be home for my kids and because my mom needed someone. It was hard to give up my part-time job that I wasn't really in love with, but I loved my coworkers.
I thought when I was younger that I really wanted to be a SAHP. Then I had kids and swayed back toward wanting to be a working mom. But it's HARD to balance everything. The schedules. The needs. The work-life balance. The chores and nutrition and getting a meal on the table every night at a reasonable hour. It's so. damn. hard. So I worked, but I kinda hated both being home and being at work. I'd be at home thinking, "Oh good, tomorrow's a work day," and then get to work and wonder WTF I was doing wasting my time on a dead-end job like.
Before I quit my job, I realized that my life at home had to be about more than just taking care of my family. I needed things to do for just myself, interesting things to talk about with friends, things for me to look forward to for my own sake and mental health. For me, part of this included really leaning into my role as homemaker. My husband and I have a pretty clear division of labor. He does plenty of chores, but obviously I do a lot more right now. (There was a time when our oldest was a baby that he was going to school and otherwise a SAHP while I worked full time, and he took on more of the chores then.) I basically homestead--gardening with an eye toward actually being self sufficient in some areas, canning and preserving, cooking and baking from scratch, etc.
This all fits with frugality too, so I figure my other role is as the Defender of the Money. My partner is the offense, the Maker of the Money, I'm the defense. I do all the little things I can to ensure that what he makes is put to the best possible use. I'm not "just" a homemaker, my role in the home is valuable.
I've had to make time for adult friends. This is something I can still be awful about, actually, but my husband will push me out the door if an opportunity to see my friends arises. :) One of my good friends is also a SAHM at the moment so we do playdates and (at least pre-pandemic) exchange childcare for a few free hours occasionally. That helps a lot. I'm also at least friendly with other parents of my kids' friends so that we can talk at the playground and get some adult time that way. This part is hard, I'm not a true extrovert and I'm an awkward person so making small talk is so, so not my strong suit. But I did the work, and it's been invaluable.
I remind myself that there are seasons of work. When my husband was in school, that was my season of being the Breadwinner. Right now, it's his turn. While my kids are young and my mom needs my care, it's not my season to be the worker. But later on, maybe we'll switch again. Or maybe we'll work out being dual-career parents for a while. Or maybe we'll hit FIRE at some point and both be home. Who knows? If that season never comes, though, I've actually worked myself around to being pretty content that I've built a good life. I make time to read about 60 books a year, I have time for friends and family when they need help, I have time to exercise, I love the gardening and all that, and I'm feeling generally pretty fulfilled, at least for now. But I had to make my role as "homemaker" into something more than "just a stay at home parent". And that takes work. Not just learning skills and all of that, but a lot of internal and mental and emotional work too.
I think a lot of us, both men and women, have hangups and biases against stay at home parents, of either gender. It's not something that really gets talked about because the default assumption is that you will work. Why wouldn't you work? Are you lazy or something? Even people with disabilities who can't work have hangups about not being able to work because it's been drummed into us basically from birth that working is a good thing, working is what we do and who we are. The first thing people ask is, "What do you do?" and it feels shameful to say that you're at home, no matter how good and valid your reasons for being there. So was it really being a SAHM that you didn't like, or was it the pressure (internal, external, or both) that you felt to be "productive"?
One final thing: you don't have to like your kids all the time. This is particularly true if you're actually with them all the time. Most kids behave better for other people than they do for their own parents, so you usually get the worst of them. It's okay. You're not a bad parent if you don't find your kids totally fulfilling all on their own or think each day is more perfect than the last.
If you feel that you have good work-life balance right now, I'd say hang onto the job. It doesn't sound like it's keeping you from helping your kids with online schooling or anything, and you haven't talked about it being impossible to work with them around. There are much worse things than having a job that's less than perfectly fulfilling, especially with the economy being on pretty shaky legs right now.
But if you quit, it doesn't sound like that would be the worst thing ever either. Sounds like you make enough to live and save, and if it would make these crazy times even slightly more bearable, go for it. Give yourself permission to take that step.
