Pulling an adjectives nighter but maintain getting tired. How can I hold on to focused/awake?

I have to write a 2000 essay some time inwardly the next 4 and a partially hours, and my attention wavers every 30 seconds or so. Had some coffee give or take a few half an hour ago, not going to hold one again until morning before I jump to school. (I'm 16 by the way)
I seriously have need of to keep focused here. Any suggestion?Pulling an adjectives nighter but maintain getting tired. How can I hold on to focused/awake?
VEry strong coffee.,RED BULL><pinch yourself every 5 seconds
OR JUST FORGET BIT AND GO SLEEP!!---------------------...
Drink a double exspresso coffee and slap yourself alot..
put rime in a bowl or rucksack and then lately rest your feet on it while you're sitting. it keep you awake cause it's so cold
LOUD MUSIC {wear a headset} watch out not to damage your audible range! and drink coffee or red bull, open a fanlight or run the A/C being cold other keeps you awake!
Drink sparkle drinks, coffee, and GET OFF ByeDr.com!! :D
if you can get your self some adderall desperate times name for desperate measures. its a dog eat dog world. do what you gotta do to win. lmao! after that
Drug store has what the give the name whack up pills(Thats the name)