Yeah, I think it's because I have young ones at home too. In fact, I am taking some time off right now to "recharge". And it's exactly what I needed. I work part time outside the home, but am making it a point to unwind a little, lol. I am not saying you need to quit, but you need to do what you need to do for a little while. Why not try easing up on the programming that you are providing. Do more "free" stuff and less that involves prep and tidy.
As for cleaning, I don't know... If you find a solution, please share! Hahaha. Who else do you have around you? Older kids, hubby? Get them to pitch in a little more. If you must (although they should be helping, it's not like you sit around all day and eat bon-bons, lol) offer a reward incentive. Ie: if everyone does what they are asked, at the end of the month, we will have a family dinner and movie night. Or something like that.
Could you hire someone, either a pro or a college kid, to come in and clean for you once a week? That would take some of the stress out of it, maybe.