How can a 40-year-old patient diagnosed with COVID-19 twice overcome his fear of illness?

Hello doctor,

I am 40 years old and have been diagnosed with COVID-19 for the second time. I tested positive two days ago and received monoclonal antibodies for the first time. I got vaccinated about eight months ago. I started having symptoms a week ago, but I did not notice the symptoms till the next day. I had a sore throat, diarrhea, muscle aches, nasal congestion, slight headache, and a cough. The symptoms slowly improved. I am worried if I am recovering from it or if I will have the infection again. It felt worse during the first five days. I am really worried about this. My doctor did not give me any medicine and said I had no problem. I am concerned about getting ill. I have obesity and hypertension. I am taking the tablets Bystolic 5 mg and Klonopin 25 mg.