I updated my profille today, and wrote it below. Could you correct or change them to natural phrases? Thanks!

I have been studying American English, and I'm interested in the difference between American and British English. I'd like to improve my English on the Mixxer. I can help you with Japanese.
Please feel free to send me a message. Then, I'll tell you my Skype name.
I can talk to you text or chat on Skype. I'd be great if we could help each other! Nice to meet you :D