I need a power-up

[I♥Scrubs, LPN]

Hey everyone! Just had a quick question for all of you. I am almost done with my first semester at my school and we just switched to our second clinical placement site. My first was only 10 minutes away, this new one is 40. So I now have to get up at 0430. I also still work part time, and usually work nights. I need something to pick me up so I am not so tired from getting up so dang early, doing patient care for eight hours and then going to work before finally going home to eat dinner and study. So I am wondering, how do all of you do it? Just coffee? I have a pretty bad stomach and go to the bathroom more times than the average person when I first wake up. I don't really want to drink coffee in fear it will make it worse because it is a diuretic. Any suggestions? Thanks!