I can't drink coffee but i still can wake up on the rest of the night

For an architecture's student sleeping is a diamond, i don't exaggerate but it is the reality .. we spend all night long for doing an assignment. =.=" sometimes i really wanna have experience like other collage girls who can hang out with her friends to the mall buying cutey thingy after finish their class but ME ? i can't do that ! after my class finish we *architecture's student* in rush going back home and start to doing our homework until 4.00am or don't sleeping at all and we do that routine almost in 7 out of 7 days ... my eye's bag getting worst and worst T.T

And unfortunately i can't drink coffee, i always getting sick and wanna throw up when i drink coffee .. and if the caffeine on that coffee a bit high my heart will beating very fast and i can't concentration .. so what do i do to still wake up all night long doing my assignment ? 

1. Spend a little time to watch funny video on youtube, i usually watch kevjumba, nigahiga etc ..yeaaah funny videos can make me a little bit more fresh and less sleepy and i bet you can't hold up your laugh if you watch "Alpha Kenny Body" kevjumba's video or "Facebook The Movie" nigahiga's video.

Kevjumba "Alpha Kenny Body"

Nigahiga " Facebook The movie"

you can check their youtube channel if wanna check their others video, they are really funny .. :D

2. Drink a lot of water to makes me refresh and to keep me concentrating doing assignment

image source : lapar.com

3. Chatting with my classmate 

image source : dreamstime.com

Chatting helps me wake up all night long and also help me if i clumsy with my assignment :D, because i can ask my friends via chatting, i usually use facebook.

Maybe that's all my tips and my own experience to make me wake up when i have a lot of assignment, and what's yours ? please share with me :))