Reminds me a bit of myself.
*exam tomorrow, lets stuffy on the internetz* (you know how well that goes?!)
Yes, I end up studying like an hour in like 3am morning, while playing video games all the other time, then go and take the test at like 8am and ace the **** out of it :D (or B :( )
Meh, I never really cared about it until its tomorrow/today.
Still was top of my class, and I didn't even have a single book that was "required" for my clasess, not a single one, at first I didn't buy them because I didn't have money at the time, then later I was avoiding to buy them because end of the year was coming closer. I even "skipped" homework [don't do that, homework you do for yourself, not the teachers]. Imagine if I actually bothered to study, would be straight Ace student, not Straight Ace minus 2xB.
Just try to learn logical, no formulas, no nothing, if you understand the logic behind whatever it is you're learning, you can never fail. The worst that can happen is that you get the pass grade.
Now don't think I'm some kind of nerd or something, things that interest me I can learn almost instantly, while things that don't I can force into my brain like temporary photographs for a couple of hours.
I did get an F sometimes at the beginning of the year, but I always fixed it up to an A, worst case a B.
Just if you can not absolutely can not learn, try to get the pass grade and cover it with good grades with something you are interested in.
School system is a failure, you are expected to know everything the best which is impossible.
So f it, if you don't want to learn it, don't waste time, do something that interests you, hell, even playing video games. That's how I'm here :)
Please, don't hate me for a no tl:dr.