How to deal with school?

5.5years left of school and it's starting to feel like a 9 to 5 job with no pay after being there for 9 years and having 8h long days. My grades have gone so low that I barely pass my classes and have 0 motivation to do anything. I should be writing a book report rn about a book that I haven't even read and I'd rather just blow my brains out.

I just can't fathom how some people still can keep up after all these years, it just makes me so jealous and it also makes me more depressed cuz I feel so useless compared to them!!!! D: