I came across this video message [1] from a previous submarine captain which I think is relevant in the WFH context as well. He mentions having a routine, clean environment, enough downtime, de-escalate conflict early and communication as key ingredients to coping with self-isolation.

Start by figuring out a routine for you and try to stick to it.

[1] https://www.bbc.com/reel/playlist/coronavirus-covid19?vpid=p...