I have a MacBook Air Catalina 10,15.5 When I upgraded to 10.15.4 however, I may not have backed it up my because now I've lost all my documents except those created since the update. All my photos, videos, music and other non-print media, however, are still there. Not sure if this matters, but while I create my docs in Pages I always save/d them as Docs. I actually am more computer savvy than I sound and I've spent a lot of time searching for answers. What I can't do is program and I'd rather not spend any money, unless you can recommend a service that's worth it. Thanks for any advice.