Faulty Acer Swift SF313 (screen Glitchy, Fans Noisy)

This was my first laptop, purchased in February 2021 to animate with. Since then the screen has become very glitchy, with the laptop overheating quickly and the fans becoming very loud (video example: https://youtube.com/shorts/APq2LH2Pixg). I can’t tell what is wrong with it and I have no idea how to fix it. I’m moving house soon so I need to get rid of this

eBay