What is a good energy boosting vitamin pill?

I need something to give me a little more energy, sleep is good but often i can't get enough of it (i'm n 8th grade and i'm already having days where i don't get to bed until 1 and have to wake up at 5:30 am) isn't that sad. but even when i do get sleep sometimes i'm still tired is there a vitamin or something that can help? i don't want anything thats going to give me energy but harm me in other ways. any suggestions?

B Complex. It contains B6, B12, B50 and works really well.