I agree that writing about yourself can be tough, but I think you've done an admirable job! I'd be happy to help with some editing suggestions:
Many would say that I am an intelligent and quiet boy.
I guess they are mostly correct, although the question of "Who I am" is a difficult question to answer since I barely know myself. I just have not yet uncovered all of myself
Being from an Asian family, I have high expectations placed on me--expectations of making good grades in school and such.
The wisdom that spews from my parents mouths is impressive. - "Spews" is generally used in a derogatory manner; unless you are meaning to criticize your parents, you might want to choose another way to put it, such as "The wisdom that comes from my parents is impressive."
My parents shaped me into being an intelligent, obedient boy. They've done such a good job that if I even try to skip class or something, my conscience racks at me so that I can never do anything bad.
My younger years were filled with many friends and fun but now less so. My quietness and shyness developed probably because I like to observe and listen instead of voicing out. Needless to say that if I did need to talk about something then I would. I like short and quick sentences that get to the point. If there is something to talk about, then it can usually be summed up into one sentence. A good example of this is my best friend and I on the phone. We talk about new stuff here and there then there is silence since we already know much about each other and end up not saying anything for an extended period of time to find something to talk about. I seek out quiet and empty places since I love to read. I usually cannot read my books in front of others because I find other people so loud and disrupting.
My best friend said that I had such a grim view of the future. I guess I am a pessimist then, after seeing violence happen to innocent people and racist remarks going around. It is in human DNA to feel superior to other people, whether through comments or actions. It is okay, though, since the world needs pessimists to put optimists' views into well-grounded reality. The world cannot all be sunshine and flowers dancing. Both of my parents are also pessimists too so that may have something to do with my personality.
These are some of my personality quirks. Even though a few faults could be done away with, I would not change anything about myself.
If you want to add a bit to the ending, you could say, "Who am I? I am a person who is pretty happy with who I am."