Your previous routines may not work, you may not have a home office or your kids are too young to understand that you being at home doesn’t mean it is time to play, you still have to work. Find a secluded place in your home, set up a desk and make it as comfortable as possible.
Like your routines, your office does not have to be perfect. If it isn’t the most comfortable, schedule in more stretch breaks. If you were never happy with your previous routine, it is a chance to start a new one. You could wake up earlier to have some focused time to your self to read, meditate or exercise. Look for the silver linings, there are plenty there.