Terrbile sleeping problem!?

hi, im 17 yrs old an right now its 8:08am when im typin this, for yrs now i guess a long time i just have sooo much trouble falling asleep... i literally been laying in my bed since abut 1:00am - 2:00am is when i laid down dont know the exact time but its between that hr, an this isnt a one time thing like it said its been goin on for awhile now an right now its saturday may 8th 2010 an to be honest ths has been goin on so far this entire week, i been finally fallin asleep around 10am or a bit later. im just feeling like bleh an by fallin asleep at 10am or later i miss out on the entire day cause i wake up in the evening, i wanna be able to fall asleep at night but idk wat its goin on, i mean i just lay in my bed for hrs an hrs an im wide awake i mean ugh, i dont even know what to really say about it anymore i hope i explained it, i havnt been to bed yet an its like 8 somethin in the mornin so i hope its good enough to understand what im saying