Chinese language is very funny. I love it.

I have started learning Chinese language for one week. (like this, it means that you will spend one week learning it)

I have started learning Chinese language a week ago.

I have started learning Chinese language and have been studying it for one week.

Firstly, I have learned four tones. I think, I'm good at saying them. some letters ( pinyin) kook like (resemble) Turkish pronouncation so I can say them more easily. But Chinese characters will be a problem for me especially to memorize and write ( draw) because they are like pictures, symbols. They all have a story. For example 'person' character looks like two legs.İt is easy to write but another other cracters are very difficult. But in spite of everythings I love it.

Pronounciation is not seen but rather heard so instead of "look like" you should "say sound" like or "resemble".