Burnout this early is insane (understandable though lol).
You're doing at least 3 major works - 4 if you're doing viva or comp - and I get that you want to get them started early but keep in mind that you're gonna have a looong time to do these. I did 3 and my advice is only do 30 mins or less on each of them regularly, it'll keep you from that burnout and give you satisfying progress.
Sleep well and take breaks. Maybe even pick up a hobby that you enjoy rather than doom scrolling on social media. Surround yourself with people from your subjects that you enjoy being around, can talk with, and relate to. Stay on top of your work and don't feel like you have to rush through your studies if your workload can't handle it.
Study hard (but not too hard) and good luck