N'Sane from Nutrishop, technically it's a pre-workout supplement, but the 1 time I took it I had enough energy where I felt like I could run a marathon and afterwards spar for 12 rounds with Floyd Mayweather Jr. It's loaded to the brim with stimulants, but it works. Even though it's meant for working out. I doubt you'll find anything that gives you that kind of energy. I think for some it might be too strong and they'll wig out and be super jittery. Also it has 1 3 dimethylamylamine, which people can crash hard from, doesn't effect me. But for those it does it can be pretty drastic. If you have a Nutrishop in your area there's a good chance they'll give you a free sample to try. Caffeine does nothing for me, but whatever they did to make this work, all I can say is DAMN. To give you an idea how powerful N'Sane was on me, I can drink a regular Monster and be sound asleep 2 hours later.
a 45 serving container's $45 bucks.