time to call in sick
Don't drink caffiene. When the caffiene stops working, you will crash and crash hard.
What you should do is drink lots of water, and anytime you start getting drowsy, do a dozen squats. That will wake you up and get your blood pumping.
It is ALL in the mind... Just tell yourself & you gonna be okay & fresh.If it still didn't work, drink a cup of espresso (double shot).
One of those 5 hour energy drinks-there's now pink lemonade flavor
5 hr energy and Mayb cup of coffee and on lunch break try to catch a catnap.
Redbull and such