Hi,

I was wondering Why do you write in Japanese(＝日本語)?

because you said you want to lean Chinese(＝中国語). 

Hmmmm.

ヴァレリーさん、こんばんは。私の名前はゾウです。今日本語を勉強しています。中国語は私の母語です。本気に中国語に興味があれば、一緒に中国語で話しましょう。さもないと、やはり日本語の先生ともっと勉強するのはいいんじゃないかと思います。

维尔利先生你好。我的名字叫邹田，现在在学习日语。中文是我的母语。如果你真的对中文感兴趣的话，不妨我们一起用中文来交流吧。如果你只是打错字但本来想学日语，不如还是跟日语老师一起学习比较好 :)

Hi Mr. Wallie (forgive me for possible typo). My name is Roy and I am currently learning Japanese. My native language is Chinese. If you're really interested in Chinese, let's maybe communicate in Chinese. Otherwise, base on the fact that you're typing in Japanese, I would probably recommend you to learn from a Japanese teacher here at italki.com, which would definitely benefit your Japanese ability.