So, which of the below three do you recommend? I would guess the last one (aniracetam) considering you said it was like speed...I'm always looking for some good shit to get me through my studies

deprenyl
high dose tyrosine on an empty stomach.
aniracetam and coffee is like speed
well aniracetam on its own does little for stimulation besides mental as it is a nootropic, so it has memory enhancing qualties and anxiolytic (anxiety, stress reducing) benefits because it modulates glutaminergic neurotransmission.
deprenyl is a drug that is an Mao-b that acts mostly on dopamine and has a anti depressive stimulation, that also increases memory, processing speed, creative thought ime and has shown to enhance life span in rats by 15%. i would try deprenyl for your studies and energy, the stuff is great, with all sorts of other positives like immunostimulation, libido enhancement etc..
its drug name is selegeline and there is a patch or transdermal.
tyrosine increases norepinephrine and dopamine via tyrosine hydroxylase the major rate limiting enzyme, sort of like a weak ephedrine without the shitty sides imo.