Review for the third grade in the university.

My third grade days and months were rapidly passed by. Until recently, I thought that I just had entered this university right now. But, when I realized where I was and when was that, my graduation from the university was closer to that time than the entrance to the university. Majority part of the university life was already finished. Before I entered this university, I imagined that I would study hard and mastered the subjects and deepen the knowledge in various fields. I also thought I would be like a monk in medieval Europe. I would live in the library and read a pile of books so that I could be like an Aristotle. What a childish fancy that was!! Was I so much ignorant? Surely, I know various things that I didn't know before I enter the university. I can do a lot of things that I couldn't before I entered this university. But, it's not enough fee me. I could be better, I can't help to think so. Even if there is no "if" in the past or history, but I can't help to think about the past possibilities that I myself throw away. I had a lot of precious experiences and improved in some aspects. But, I think I could be better.