Start controlling yourself, you have no idea the problem my game addiction gave me, 'cause i've been playing comp games since i was 5 and now im nearly 15. You need a lot of will, and just keep yourself to the books, dont give in to the lust, eventually you'll get over with it, though i must say that it works for me as i have a lot of fun studying
And that 20 minute reading stuff is ok as studying in short but intensive bursts of concentration is the best way to study, try to think linearly not parallel as it distracts you a lot, and please dont punish yourself with forcing a routine abrubtly, adjust slowly and soon it'll become a part of your life, the most important thing is not to give in to the lust, cause i'm at the top of my class and even i can increase my potential if i dont get distracted, that's why i study in shorts burst of concentration, but when needed i can also study for 5-8 hours straight ! Hope this doesnt sound like crap
