When normal life as we know it is put on hold for a period, it is normal that we worry more frequently. This might affect your sleep and general well-being - and that is not ideal in terms of your exam preparation.
Try to take control of your thoughts and concerns – instead of letting them take over your mind. Ask yourself: What is the worst that could happen and how likely is that scenario?
If necessary, allow yourself to worry 15 minutes a day. Any concerns that arise outside of this period should be stopped. For instance, by writing them down and then physically putting them aside.
Contact the Student Counselling if you find it hard to let go of your concern and negative thoughts.