Why I joined italki?

Hi everyone! Today, I'm going to share why I joined italki. Actually, one time I was using Skype where I came across one language partner, through other websites, (Two commas must go in between parenthetical expressions.  Prepositional phrases are parenthetical expressions; as a result, "through other websites" is a prepositional phrase which means that two commas must go in between it.) to whom I suggested one link to improve his English; but, he rather suggested me this website named italki and he made me believed that I would like it a lot. I followed his suggestion, and singed up for the frist time. I looked at the home page and sub-forms and gradually got to know it. When I wrote a notebook entry, someone made a correction right away and it really made me happy, as well as excited. I was really gratified by my friend and whoever he is, is always remembered in my prayers. Ever since I have been using italki, I have stopped using many other websites. (Take out the comma here, you do not need it before a period) I rarely use face book ("facebook"). It now seems very boring and there is a waste of time. I used to feel very bored on my leisure time, but now I'm always enjoying and learning by using italki, and I try to find more time for italki. I have met me many people from all over the world, who are always suggesting helping me for good things. Whenever I come across any question, I immediately find the answer here; and therefore, I'm very more confident that I'll reach my destination. once Through this website, I've found three reasons to keep continuing italki: (1) first, to meet people from all over the world, (2) second, to improve parts of English, particularly writing, and the 3rd one is to learn Chinese.
I’ve heard my friends saying Chinese is more difficult; but, if I work hard, I can learn it in a short time. Because, I have many friends from China who are very friendly, and can help me anytime. (A sentence that starts with "because" without a comma after it is not a complete sentence.) 

Good job!  Keep up the good work.