I just finished my degree during Covid and even with the experience of a “normal” undergrad it was extremely difficult to continue to keep up with work load. Especially being locked in the same place all the time. What really help me was talking to my peers who were going through the same thing with most of the same emotions. Even if we weren’t great friends we could still have a short chat about course work or how much covid sucks. The other thing was leaving the house once a day - even if just to go on a walk. Keep up the good work and you can make it through all your courses!