a long distanse

My friend whose name is Kana, went to Australia last month. She study at a school in Australia.
I became friends with her when I was a high school student. For three years, we had been same class and my attendance number is next to her. We have been good friend very much.
She don't return to Japan for more than two years, so I am a little sad and worry.
We can't meet, but we are exchanging e-mail. If she had hardship, I would help her.
I will support her and I want to experience and learn many things now, like her.