Sleepy

For the past several days, I have been unusually tired.  My internal clock has been off ever since my winter break when I would go to bed extremely late for lack of cause to wake up early.  Because of this, I have not been able to go to sleep at my normal 9'oclock for school but still have to wake up at 7'oclock.  Consequently, I am getting far less than my needed 10 hours of sleep.  I can see a direct correlation in my grades actually.  When i go to bed before 9, I ace my math tests.  If i go to bed after 10, I miss .5-1 point.  After 11 I miss 1-1.5 points.  If i go to bed after 12, i miss 2 points.  I never miss questions because i dont know how or wat, i only miss if I make a stupid error such as adding or multiplying wrong.  It sucks working on insanely hard problems involving advanced algebra, geometry, and trig to find that you missed it because you added wrong or forgot to put ft.^2
wow is it annoying.....
now i cant go to sleep and i have to wake up early tommorow morning for orchestra rehearsal.  Hopefully I can sleep earlier tommorow in preparation for my giant American History test