CRP is one of the many markers to help in knowing the ongoing process, not any confirmatory test for diagnosing. If you are comfortable, no breathing distress, maintaining SpO2 above 96-97%, and it does not fall more than 2-3% after 6 minute walk test, your food intake is normal without any abnormality of taste or smell, and you are within reach of a well equi hospital, you may keep yourself at home, till anything enumerated above shows deviation. I presume you are inoculated with 2 doses of Covid vaccine.