How much difference can nootropics make to one's studying performance / habits? The problems are with motivation (the impulse to learn useful stuff winning out over the impulse to waste your time) and concentration (not losing interest / closing the book as soon as the first equation appears -- or, to be more clear, as soon as I anticipate a difficult task laying ahead). There are no other factors (to my knowledge) that have a negative impact on my studying habits.
Or, to put it differently: if a defective motivational system is the only thing standing between me and success, can I turn into an uber-nerd that studies 10 h/day by popping the right pills?
EDIT: Never messed with my neurochemistry before. Not depressed, not hyperactive... not ruling out some ADD though. My sleep "schedule" is messed up beyond belief; in truth, I don't think I've even tried to sleep like a normal person since childhood. Externally imposed schedules always result in chronic sleep deprivation; I habitually push myself to stay awake till a later hour than I had gone to sleep at the previous night (/morning/afternoon) -- all of this meaning, I don't trust myself to further mess with my sleeping habits. Of what I've read so far, selegiline seems closest to the effects I'm looking for, but then again all I know about nootropics I've learned in the past 6 hours. I can't guarantee I can find most substances in my country.
... Bad or insufficient sleep can cause catastrophic levels of akrasia. Fix that, then if you still have trouble, consider other options. Results should be apparent in days, so it is not a very hard experiment to carry out - set alarms on your phone or something for when to go to bed, and make your bedroom actually dark (this causes deeper sleep) you should get more done overall because you will waste less of your waking hours.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.