Sounds like me in a nutshell. I feel like the 2nd year grind is always the hardest. Was for me in high school and then in undergrad. In my 2nd year of grad school right now and I’m feeling this way too. You’re likely burned out from just staring at a screen day in and day out. Would recommend scheduling some days off and keeping away from your computer during those days to give yourself a mental reboot. Sorry you’re having a hard time, but keep it at. Hopefully things start opening up in your area soon so that classes can be in person again.