My neighbors were vaxxed and boosted and still caught Covid. Her husband initially thought it was allergy and did not take the test until symptoms got worse. He took the antiviral meds on the 5th day of the cycle and suffered for a whole week. She tested daily after his symptoms, tested positive and went on the meds right away. She felt better after only 2 days of antiviral.
You have a 5-day window for the antiviral meds to work. Test often and test early. They are free. Why not?