Familiarity

To begin with, I'm Irene -- Ira is for short --  but only a few people call me that.  I'm a student of international marketing. Maybe that's why I want to speak English as well as possible. In addition, I've started to study Chinese.   That is really hard -- the hardest thing I've ever tried to understand.  I want to speak with someone and share experiences. )

It was a little hard to understand your last sentence, so I had to guess at your intended meaning.