Hi, i'm new to this forum and I have a few questions for the experienced users. I go to a really competitive high school (ranked #21 in the united states) and I often find myself staying up all night studying. But after around 11 my studying becomes ineffective as i get incredibly sleepy. I am going to get speed soon, and I am just wondering how much of it will i need to get me just enough buzz to go through the night to study and get a high grade on my test and also, how much of it until it kills me. Thanks!!!