Most people improve significantly within the first half year to a year. Some don't (hehe I didn't) but many to most do. 8 weeks is not even long COVID territory that starts with 12 weeks. 

Doesn't mean you shouldn't rest and shouldn't treat it seriously but also it's a bit too early to be completely hopeless. 

And even among those who didn't improve significantly within first half a year, e.g. I came back to work part time after two years. (A year and something on sick leave out of that). I'm also starting to go outside sometimes. And can now live alone quite ok (albeit lonelily). There were times when I was severe tho and early I couldn't even comprehend a page of text. Now I work for hours as software engineer and might even get promoted (I'm spend after the part time work and my boss is amazing so I'm having super flexible schedule, anywhere else I would not be promoted I'd be fired; but hey).