With everything happening on screen, it's easy to feel trapped. Even if you're using a second device to spread things out, you've got little else to look at. If you get migraines or just plain fatigue from all this screen time, it makes sense to think about how to break things up.
For some of my tutoring clients, with the agreement of their parents, spending all or part of our sessions with cameras off makes sense. We're still sharing a document to collaborate, but the demands on the eyes are lessened.
If you're someone who prefers taking notes on paper, or are just getting into the habit of note-taking and prefer handwriting over typing, a notebook is your friend. At least half your class time can be spent looking at paper instead of screen. Then, when you go to review and study, and even write first drafts, you can continue to be off-screen.
Try using a physical text for any class where it's an option, instead of pdfs or web-based materials. You'll free up screen space for writing or other reference and be spending more time with paper.
Finally, and I know this is a stretch, you might think about taking some of your gaming and entertainment off the screen and into the analog world. Cribbage is great for basic number sense and strategy. Reading books helps your imagination develop and bring scenes to life.