Coffee....yuck. I was forced to drink it BLACK after I was diagnosed with ADHD. To this day I cannot stand even the smell of it. I do drink Mountain Dew Code Red though. The first time I gave an energy drink a shot was some 'triple size, triple power' can. It was soo easy to drink, I downed the most of it and when I got home I was in high gear! I felt like The Flash! Woooo! After that I took it easy with that stuff. Although I find the 5 hour stuff just worthless. I was on Ritalin and yes, got use to it and it just made me feel depressed/trapped. Seems like anything I take has to be high dose or it doesn't work. And if I have to take it for a while, my body gets use to it and there goes the effectiveness.