My autobiography

My name is Lena. I come from Kaohsiung, Taiwan. My family consists of five members, my father, mother and two sisters. I am the second child. “Two’s company but three’s a crowd”, our family frequently takes it as jokes [You could also say 'often jokes']. There is no never a hotel serves with a room just for three people when we go travel, so my parents often say that my little sister is excrescent [I'm not sure what you are trying to say here, is there another word you could use instead?]. But in their hearts, all of us are their dear babies.

I grew up in a small town of Kaohsiung. Though this small town doesn't have as much many resources as big cities, because of the free and simple lifestyle here makes me develop I have a lively and passionate personality. People often say that every time they see me, there is a big smile on my face. I believe laughter is one of the most infectious expressions of emotion. I wish hope people’s emotion spirits [For some reason, we would say 'spirits' here instead of emotions] will be lifted up because of my smile [Although this is correct, it would be more usual to say 'by' instead of 'because of' in this situation].

Like every ordinary person, I have some little defects.: Lack of rebellion, which may be a strength or a weakness., I am being afraid of trying to break the rules since because of my conservative personality, and that which limits my imagination and creativity.

OR

Like every ordinary person, I have some little defects. Lack of rebellion, for example, which may be a strength or a weakness. I am also afraid of trying to break the rules since because of my conservative personality, and that limits my imagination and creativity. 

[When you give examples, you can either use a colon (:) and separate each thing with a comma, like I have done in the first correction, or you can use the phrase 'for example' after the first thing, then use 'also' after 'I am' for the second thing, like I did in the second correction. However, the second correction is usually used for only two or three examples.]

Throughout my school years, my academic performance is has been pretty great. But I am not a bookworm; I always think that there are much more important things in the word [do you mean world here?] other than in books. Unlike traditional Taiwanese parents, my mom and dad never strictly demanded excellent school performance on from me. This pressure-free education makesd me learn how to effectively use my time and made me realized I have to be responsible to for myself. However, life is not always so smooth. At During the first two years of my college life, I found myself that I couldn't [You could also have said 'I found myself not being able to'] handle the heavy schoolwork. This is the first time I felt awful about my incompetence. I tried to adjust my thought, tell myself that I don’t have to be the outstanding one at least, as long as I leave no stone unturned. Through by Because of this experience, I developed perseverance and a strong-mind, which I will use I got will accompany me to conquer the fear of the unknown future and to challenge bring out the utmost of myself.