In a stressful situation, when people often fall back on instinct, deliberate action is indispensable.
So think of your life in terms of a series of "think/do think/do, think/do". It’s the absence of the "think" in the "think/do" sequence that gets people in trouble.

When you’re trying to balance work and childcare, while also maintaining your relationship with your partner while in isolation, sleep is usually a low priority. But that's when being rested is important.
When everything feels overwhelming, hit pause, find a quiet place and sleep.

Either give somebody 100% of your attention or zero.
If you’re half paying attention to your kid or your partner while doing something else, you are failing at paying attention to them and at whatever else you were trying to do.

Overthinking about all that could go wrong with the world because of the pandemic is not really helping you.
Focus on what you can control: washing hands, connecting, following rules to stay apart, not touching your face. Keep your mind busy with other positive activities: like reading or learning something new.