You may be forced to adjust your routines during this time. Look for ways to adapt your usual habits or to form new ones.
For example:
If you usually study in the library, student lounge, or in a classroom, ask yourself what kind of environment helps you study. Consider how you can recreate this at home. Maybe you need to study in a chair, rather than on your bed or couch. Maybe you need to move to a new spot when you change tasks. Do you need background noise? How about a white noise app? Do you get distracted by other people and conversations? Can you find a quiet space in your house/apartment or work with your roommates/family to have specific quiet times?
If you always study in groups, try a virtual or phone-based study session with your group. You can create your own Zoom meetings using your account.
If you thrive on tight timelines, but now have a more open schedule, think about how working with others or setting up a schedule can recreate that for you.