At this point, I'm "working from home," but I only have about 12-15 hours of work each week, all of it online communication (text, email, and video conferencing via Zoom, Face Time, or Google Meets). And as time wears on, I'll have even less to do. I'm grateful that I'm still receiving my full salary.
One thing I did early on that has helped me a lot is to make a daily schedule, and then strive to stick to it. And that includes going to bed on time, and getting up on time. I don't get up as early as I used to, but I've been getting up at 6:30 am, going for a daily run, and then starting the day at 9:00. Other than work, I allot time for reading, music (I've had a recorder sitting on my bookshelf for about 10 years, and I've been teaching myself to play it, thanks to YouTube), staying in touch with friends and family (Face Time is amazingly useful), meditation, and walking. At the end of the day, I've been making a point to go to bed by 10:30 pm.
I'll admit that the first two weeks I watched a lot of TV. I don't normally watch much TV, but during that time I did a lot of binge streaming. I've cut that back, and I don't turn o the TV until 6:00 pm at the earliest. That really helps me center the day.
One of my sisters-in-law, who is a grade school principal (and who has been working about twice as many hours as she used to P.C.), suggest to everyone that they should come up with two longer-term projects, and then go for it. I think it's fantastic advice. We all have those things we've always wanted to do, but have never had or never made the time to do. Like learning how to play the recorder. Now's the perfect time to do those things.