Fantasy

When I was twenty-one-years-old, (<--100以下的数字最好写英文词。) I went to Malaysia alone. It's was a (<--虽然 "it's" 可以当 "it was"，但是英文不这么样用。) very exciting trip, because it's was my first time to visiting another country. When I arrived at Kuala Lumpur International Airport, (<--正式名字主要词都要大些。) I felt happy. I saw many another countries' visitors, and they're were also happy to be there.

Malaysia is a very beautiful country on earth. (<--不用写。大家都知道马来西亚在地球上。) The another day, I got to arrived in Langkawi. It's a pretty good place in Malaysia, so clean and peaceful. All the peoples were very friendly and helpful. At the Langkawi Island it's is so pretty good wonderful!

写得好，西班牙馅饼！有问题请别怕问！ =)

Fantasy Did this really happen?  Or is it from your imagination?

I want to hear more about your vacation!  What did you do there?  What kinds of people did you meet?  Did you go anywhere else?  

Great job 西班牙馅饼!  At this point, I feel you can focus on using the past tense of the be verb correctly (was / were) and using different adjectives.  Instead of good, try great, wonderful, fantastic, incredible - there are lots of words you can use!  Also, English speakers do not use happy as often as speakers of other languages.  Another word might sound a bit better - either a different feeling or a word that means "good."