 You being calm and creating a calm environment will make a big difference. I tend to whack on classic FM and take some deep breaths. Give yourself more time than you need. Being in a hurry makes everything harder and somebody will snap. Don't let food take up head space. Maybe have the same breakfast every day or create a rotor for lunchmaking. Do as much as you can the night before so you're not madly searching for shoes or homework in the morning. Zone in on what's going well no matter how tiny and try just to roll with the challenges. Focus in on the here and the now. Shelf the big stresses for another time.