What the hell? Don't listen to this idiot.
Consistent work is your key to success. Consult your teachers, work
out a plausible schedule with them and stay committed to it.
Sometimes it's not the number of hours you put in that counts, but
how productive you are during your study session. Look for a source
of motivation in the form of smarter peers, parents' encouragement,
self-betterment or hope of a better future.
If you want specific advice on certain subjects, just PM me since I
probably took everything you're taking, and I did pretty well too I
guess. 
