How to wake my self up please help.?

Ok i have to make this quick because i have to go to school at 7:40. Alright when i wake up in the mornings i cant keep myself awake.Right now im sitting on the computer in my PJ's :/ And i had a shower last night people say cold showers but i don't have time.And i just ate im eating a blueberry beagle.What can i do that's quick please give lots of choices.Thanks,Brittany