Chatterbox: Down to Earth

I am in a class with only 11 other in-person students. Everyone else is virtual. A few days ago, two people that are in-person got contact traced. One of them was my best friend. I have no other real friends in my in-person class, so whenever I'm at school I get really lonely. I used to look forward to every school day because my teacher's really nice and I have my best friend, but not anymore because without my best friend, my teacher is still nice, but i have recently found out that it's mostly my friend that I look forward to seeing. Without her, it seems like every sad thing that I had ignored before is crashing on top of me, like people being mean on the bus, one of my friends being a not-so-good friend, and COVID in general. Do you guys have any advice about what to do? If you don't, that's still fine, I just really needed to get this out.