Have a happy day!

(for a journal style, you should make the salutation at the top. Like the subject line.)

It's really late in my country, but I don't want to sleep now. I know that it's really bad for my health, but I want to practice my English now and talk about myself. I want to say

I love travelling. China is really large, I would like to go there.   that There are so many cities  haven't been to . But now I want to go outside my country, I want to go to some foreign countries.

I really want to take part in the volunteer program which is called AIESEC.

But I have to pass the exam first. I'm afraid that maybe I can't  won't make it. But if finally I have the chance to go outside travel ,maybe I will hope I can go to India or Greece. Greece is really beautiful. If I can  would love  to live  living there. 

Finally, I hope I can have a happy day , today. I'm a student and I have a chemistry experiment to do. It's a little dangerous.

Have a nice day.

Hi Liujy!  I am a student too and you have me interested in AIESEC!  I have some notes - you keep forgetting to capitialize the word " i". It is important to capitialize it because it is a proper noun. All proper nouns are important. In English  people, governments, important places and  Sciences( like chemistry when it is a subject in school!)  always have their first letter capitialized. I remember to capitialize the first letter of my friends names because they are important to me. Some people may think if you do not capitialize "I" that you do not think what you are saying is important. 

A lot of English speakers do not capitialize the "I"  either- it is a very common mistake!  

One more comment- many people who speak English as a second language use the words " really" and " very"  too often.  

I would suggest you use those sort of words less. You can make a strong, passionate statement  by being very simple .