You can take control of.your own hygiene @daffodilsandblossom
Its primarily an airborne through droplets, which means keeping your own space with fresh air circulating, and breaking the cycle of secondary transmission through touch with hand washing.
Use your own towel.
Have you looked on the heart Foundation website? They might have more specific advice for you, and have you spoken with your gp or 111 about what other precautions you might need?
Welcome here, and I hope you find it helpful. There are links in the OP you might find useful. 