How to balance stress from work when I am home with my child?

When I'm home with my kids, I try not to do work at all. I allocate a NO-WORK time and devote myself to just my children for that couple of hours (if you have hours to spare). So no checking of phones and emails during that time at all. They deserve your attention and when you really switch off from work, you don't feel that stress anymore. You may also inform your colleagues or your boss that you won't be checking your emails when you are home with your kids and if there is an emergency, they should call you instead.