Anxiety disorder in covid. Myself calm?

My husband started having severe fever and body ache since 13th and i got extremely anxious. On 14th we both tested positive for covid. CT value 27 29 for both of us. Even since the report came positive my anxiety is sky rocket and my heart is racing all the time feeling claustrophobic. My pulse is always over 100 ... 100 to 110 and i am not been able to control it. I used to take inderal and serta 1 yr back but stopped it whn i felt better. My oxygen level is normal, fever is not there since 15th, hav dry mucus cough, sometimes getting thick mucus with blood tinged in it, the cough frequency has reduced that before and even the throat is doing better , i can feel the cough only in my throat and not in my chest... having taxim 0, vitamins, zinc, Alex cough syrup, etc daily.. but the anxiousness is Killin me... I can't keep calm and as A result my husband is also worried because of me. I have no weakness nausea nthn.. it's more mental than actual. How to keep myself calm?