How do I become smarter Watch
I used to do 20mins a night for my subjects and you'd see where you were going wrong easily and pick up on how to be exam ready / exam smart - basically impress the examiner.
And don't be a dilettante - have opinions! Everybody can quote Plato, but to be able to really argue with his ideas using your own experiences is much more intelligent.
And in support of Peoplesguy 'get a life' philosophy (because there are so many stuff that you can discover for yourself and are not articulated in words and ideas that will only spring up from your mind after processing life with knowledge), I will finish by quoting (somewhat satirically) the good Will Hunting scene:
"So if I asked you about art, you'd probably give me the skinny on every art book ever written. Michelangelo, you know a lot about him. Life's work, political aspirations, him and the pope, sexual orientations, the whole works, right? But I'll bet you can't tell me what it smells like in the Sistine Chapel. You've never actually stood there and looked up at that beautiful ceiling; seen that. If I ask you about women, you'd probably give me a syllabus about your personal favorites. You may have even been laid a few times. But you can't tell me what it feels like to wake up next to a woman and feel truly happy. You're a tough kid. And I'd ask you about war, you'd probably throw Shakespeare at me, right, 'once more unto the breach dear friends.'[...]"