Re: Please help! Motivation letter!
I am surprised to learn that Japan is a Western country.

Some free advice follows. You underlined the entire opening sentence. Why??? (Okay, that's not really advice.) You thanked me before I did anything. Why? (Again, that's not really advice.) I suggest that you forget the phrase previous experience. It's pointless. In the first sentence you say you are are applying for something, but even after I read the thing I couldn't figure out what it is that you are applying for. Finally, your first sentence is missing a comma.
Not a professional teacher