How can I not be so mean to my family by the end of the day?

I'm a Father and Husband. Family is great. I'm great... until about 9pm. After a long day of sleep deprivation, not getting to do what I wanted, and the night process of getting everyone to bed, I get in a bad mood. It usually ends with me yelling at everyone. How are all you getting through this? My wife is having a hard enough time with other family issues and my attitude at night doesn't help. I'm actually a really nice guy. It's just at night I turn into Mr. Hyde. Thanks. via /r/Parenting http://bit.ly/2DKp49c