Not sure how reliable the home tests are anymore since the virus has changed so much, but that certainly sounds SARS-y! I've had COVID once (this past January) and I had complete anosmia and ageusia for almost three weeks - well after my other symptoms were long gone. By the time I got to ten days, I started getting *real* concerned that it was going to last a long, long time, so the first time I could start sensing smell/taste was a glorious day!
Sucks though. Sorry to hear you've been battling that crud.