I just don't understand... 8:45pm

Are some people just blessed with more hours in the day then others. Are there books or classes on how to work full time and keep your house clean while spending time with your kids to help them do their homework and cook dinner. Then have it all fisinshed by the end of the day with all the laundry done and and and and blah blah blah blah. I get so bogged down with what I should be doing that I can't do anything. Here it is 8:53 now and my kids are still awake, well the ones that should be in bed because they have school tomorrow, doing homework. I just don't understand how some people do it. I have a lady I work with and her house is I would say 100 times bigger then ours, and it is spotless, beautiful. Even her kids rooms are clean. Today is a... lets just say I hate when I have days like today. I just don't understand now I'm just depressed. Dont get me wrong I know that I am blessed with what I have but sometimes life is totally overwhelming and it sucks.