Grammar corrections on exchange student statements

( If any grammer or word mistakes were found, please let me know! )

I am going to attend community college at Seattle from next April.
I have ever been other countries some times and I am used to go abroad, but it will be my first time to go by long term staying.

I am really nervous and afraid of attending classes.
But I am trying to improve skills while I stay in Japan.
I am writing essays, so I will post them lately :)

good night! - 23:55,Japan

Hi,

Here' s a little help from me : ) I am going to attend cC ommunity cC ollege at Seattle from next April.

I have ever been to other countries some times before. However,andI am used to go abroad, but it will be my first time to go by long term staying.this would be the first time that I would have a long stay in a foreign country.

This makes meI am really nervous and afraid of attending classes.ambiguous.But I am trying to improve skills while I stay in Japan. However, I am determined to take up all the challenges during my stay in Japan, in hope of improving my skills and bettering my future prospects.

Are you going to study in Japan or Seattle, USA? ... that's not very clear : )

Thanks for your help!
I live in Japan ,and I'm going to study in Seattle from next April :)

Then change your last line accordingly
All the best to you and you'll be fine.... Have confidence and go
Good luck!