i just don't get it

I just don't get it! i tried. i really tried. But i still can't sleep! neither can I wake up too. when im lying down on the bed, i can't seem to close my eyes. when im lying down on the table in school, i can't seem to open my eyes. What THE HELL IS WRONG WITH ME? I just don't get it! i tried. i really tried. But i still can't score in maths! I study and did practices day and night. but i still get an D for maths! what THE HELL IS WRONG WITH ME?!