Got frustrated and yelled at my kids today. Feeling awful about it.

My kids were being loud and I just lost it on them and yelled way too hard. Then I felt like a total hypocrite because I'm always telling them to control their emotions and be patient and kind. Had to go apologize which was humbling but necessary. Anyone else struggle with keeping your cool when you're tired and stressed? How do you come back from those moments with your kids?