What stops you from doing more work/education?

Generally, laziness is my hindrance; I believe that my dopamine receptors have just puffed into thin air.
Too much TikTok has rotted me. Even when I watch movies, I'm usually playing Sudoku on the side.

Also, I really deem a lot of my schoolwork to be pretty otiose. Fuck English Literature, shit sucks.
I'd rather just dedicate my time to becoming extremely good at a certain topic, such as cybersecurity.