First notebook entry: Introducing myself

My native language is Putonghua and I grew up in Anhui Province. I enjoy watching movies with my friends when I have free time.  My major is English, so it's important for me to practice and gain more knowledge about it.  Don't hesitate to correct me, practice makes perfect.

Good job.  By the way, in America most people don't know what "Putonghua" is, so it would probably be better just to say "Chinese" or "Mandarin."

My hobbies

In my free time, I like watching movies such as youth (I think in English we would say "children's" or "kid's" movies) movies, comedy, action and horror.  When I watch a horror movie I have to have a friend watch it with me. On the one hand I like horror movies, on the other hand too afraid to see it on my own.  Such a strange feeling! Sometimes i like listening to music.  When I find a song that I like I will replay it many times. I still remember the first time I listened to one particular song and fell in love with it.  For a period of time almost every night I would listen to this song.
On the weekend I often will meet with my friends and we will share good and bad things that happened to us during the week.  Soon after I entered college I met a lovely girl named is Susan  .We quickly became good friends and we get along well with each other.  I cherish the friendship between us.
Last month I borrowed a history book from library  .This book mainly was about a Chinese historical figure-Lubuwei.  After I read the book I had a deeper understanding of him.  Although he is not a popular historical figure I have to say he has a remarkable business mind.  When you read a good book you can get a lot from it.

You have a very good vocabulary and understanding of English.  The main problem in your note is punctuation and captalization.  Also, I reworded many phrases so that they sound more natural in English; however, I did understand everything you said, which is the most important part.  Really good job!

First notebook entry: Introducing myself

Hello, my name is Joy.  I`m a Chinese girl learning English.I hope I can make friends from everywhere.  If you like me and you think we could be friends, please contact me.  My MSN is [email protected].

Good job!  The main problem was making sure to include space after periods and commas.  The other changes I made were just to make it sound more natural in English.

I can't sleep

It's really late now, but I can't go to bed because of the exam I have coming up. It's a pity that my book is white. I haven't had a serious class. If I don't pass the exam I will study harder the next term. I'm going to be a 18 years old. I'm a big girl so I need to be take responsibility for my future. I believe I can be a good person. Study diligently, come on! 

I understand what you're saying overall, but some of your word usage does not make much sense in English.  I think you might be trying to directly translate Chinese ideas into English words.  加油！