Take a day off and do whatever you want.
I can think of no better way to remain motivated than enjoying the freedom that your work arrangement has afforded you.
If you aren’t self-employed, schedule a vacation or personal day as soon as possible. If you are self-employed, tomorrow would be a good day to take off or perhaps the day after tomorrow, if you feel you need a day to arrange for your day off to be uninterrupted.
Take a hike, ride your bike, sit in the park and read a book. Jump on the train and go shopping in a nearby city. Sit in the coffee shop and people watch. Do whatever you’ve been wanting to do and telling yourself you didn’t have time for – just do it.
The world will still be here in 24 hours – I promise.