you have just reminded me how foolish i have become, from your question, iv only started using this site,
going to the library is cool, just make sure your friends dont go otherwise they'l distract you, depends on your friends really, i used to go alone but then friends started goin, the thing is, u end up getting paper thrown at you when you are falling asleep, in my case, a rubber, but urm, i dont know, that really hurt tho,
you'l be surprised how much info you take in at the library, the thing is, you will get tired fast coz time flies at times and you get really hungry, wel i do, coz alot of energies used up by my brain,
dont forget to take study breaks,
hope i helped!