wear mask properly get vaccinated (if not done yet) sanitise hand or wash with soap and water after touching any object or person keep your shoes outside house and use another set of slippers for indoors if required meditate and indulge in hobbies as you are clearly anxious and stressed about it do not overthink and google as it will not lead to ocd as the patients of ocd have compulsion to clean even if it is not that dirty but in your case covid actually demands that much hygiene so cheer up you are doing a good thing by being a responsible person. feel free to consult if you feel anxious or need more information