the tanong is for the smart peoples so....

hi guys give me an advise how many hours should i be on net or fanpop in school time im so afraid that this fanpop make my degrees down. in summer time i often 2-5 hours on net but in school ipalned for 1 to 2 oras what do u think plz give me an answer 8 pagpaparangal for best advise .thnx