[Great job, just a few mistakes. Of course several different ways of saying what you want to say, but here is one version]
My Parents
There are three people in my family- my father,my mother,and I.
My dad is Buddhist (as am I), so he is an optimistic and liberal person. He can put down everything in his mind [I won't correct this, but I don't quite understand what this is supposed to mean], and he believes in transmigration. He seldom told me what should or should not do. However, through his behaviour I have learnt to understand and love others, and to be kind to them. In my eyes, he is the greatest man in the world.
My mother...Emmmm, she always told me that whenever and wherever I introduce her, I must tell the other that she is the most beautiful woman in the world. Every time she said that, I could think of the queen in the fairy tale "Snow White", haha, just a joke. [This can be corrected, but I am assuming you mean this to sound a bit informal anyway] Any way, now I want to tell you: "My mom is gorgeous. I have never seen a more attractive woman than my mom." OK, I finished my task. ^0^. My mom is a housewife but she is never 'desperate'. I know this TV series is very popular now, hah. She has a down-to-earth and hardworking spirit. Whatever she does, she definitely does it well. This also encourages me to do everything responsibly and carefully. I love my parents. The only thing I can be sure of is that I will never ask them for more than their love. If there's an afterlife, I would give all in return just so they could still be my parents.
[Great job!]