I don't really want a lecture about how taking amphetamines to study is bad. I have some family problems going on and I simply can't concentrate, excuses whatever, I just know I can't afford to fail.
But for those who have taken adderall, I have a few questions.
I haven't really slept in two days- Am i going to crash significantly when it wears off if I take it now? I'm just not tired, I'm in a panic and when I try to sleep I just can't because I have too much to work on, I tried to take a nap today but I couldn't fall asleep. Too much stress

but I figured if I'm not sleeping, I may as well be studying.
Obviously I'm not taking it for ADD or ADHD so how long should I wait in between doses? I was planning on taking at least two over the weekend. But I have just as much shit that keeps piling up and I'll be taking it again over the course of the month, is there a time period I should allow my body to recuperate/come down?
I'm not going to crush it up and snort it so don't bother suggesting it or telling me not to.