I have a 3yr old and 4yr old and I feel you 100%. I work full times as an nurse and then am home with my kids the rest of the time, until they start back to full time day care next month. This may sound terrible, but the most stressful days at work don't compare to what it's like being home with my kids all day. My job is physically demanding too, but I get moments to sit, got to the bathroom by myself, even eat by myself, there's not constant screaming, fighting, etc. I'm switching to day shift here soon and can't wait. I love my kiddos, but they can push me like nothing else can and wear me out like nothing else can. It's a different kind of stress and exhaustion, if that makes sense. When they're in day care is when I'm the best mom. For me it's quality over quantity. For some that's not the case though.