Good advice from Zebedee & Dodger.
The risk of catching the virus outside in the daylight is negligible, so go for a good long walk.
I'm a firm believer in exercise. So even when quarantined in a hotel room, I managed to walk 5 miles a day.
[Apologies to anyone who's past walking due to age related factors. No apologies at all to anyone who cannot walk due to self inflicted factors like over eating and under exercising.]
Then Charlie Munger has some good ideas about attitude. Particularly "Self pity is always the wrong way to think. It's counter productive".
Covid lock downs aren't much fun, but they are better than been conscripted to fight in some war for 5 years. Most board members have it very good.