Stress levels are killing me

Work has been insane for 6 months. Layoffs, restructuring, we're all doing the job of 2 people. I bring that stress home and snap at my kids over nothing. Then I feel like garbage. My wife called me out on it last week and she was right. I'm not sleeping great, barely exercising. Just work, kids, sleep, repeat. I know I need to do something but when? Does anyone actually manage to de-stress with kids in the mix?