I Do Not Know

So here I sit, another sleepless night. The kids are tucked in sleeping, and the sounds of my husband's snoring fills the air. Most nights I look back on the day and although I feel relief that the day is over, I feel somewhat assured that I have done a good job, and that all my efforts have not been in vain....but tonight I can't say this.
I feel so overwhelmed with confusion, I feel such a responsibility for the way my children turn out that I  wounder if I am steering them wrong.  All that they do lately is fight and yell and scream and cry. My efforts to regain the peace between them usually ends up in more fighting, yelling, screaming and crying, but usually involves one more person...me!  I don't know what I am doing wrong..my day is spent trying to keep the peace and keeping everyone happy. Lately it seems like it's having the opposite effect.
The stress of everyday life is getting to us all, but mostly Jeremy.  He has been working long stressful days to provide for us and to allow me to be a stay at home mom, I really admire and appreciate his dedication to his family. So when he comes home from work I want it to be a peaceful, relaxing evening for him, but instead it usually is the opposite. When he finds more comfort alone in our bedroom with the door closed rather then with us it makes me feel like a failure.

What more can I do? I do not know...How much more can I give?....I do not know....Can I do better???...I do not know....but tomorrow is another day, and I will try again, and again, and again cause that is what a Mother does....