You might also be burning out from mundane responsibilities and need a break from wprk and chores and kids?
Do you live near relatives or have friends that could watch the kids for a weekend? Can you take a few days off work? It's really important to practice self care and take breaks.
I don't think the US culture is good at identifying when it's time to vacation and I think part of that "gogogo culture" makes people feel bad when they have to stop. I take time off every 3ish months or I'll burn out and get really low. Work is draining. Kids are too. XD