Introduction of me

HI. I'm Arisa. I've been living in Japan. I want to study English and German.
Caz In the future I'd like to work overseas ;) and if you like, I may can teach you Japanese :) I dont know whether I'm good teacher or not anyway lol
I'm fond of music(especially singing), cooking, Watching 'Anime' and Reading comic books and so on and so on.... I would love to talk with people all over the world :)　　

Never write Caz it's ok to say it. You English is very good

Introduction of me  Self Introduction

HI. I'm Arisa. I've been living in Japan. I want to study English and German.
Caz In the future I'd like to work overseas ;) and if you like, maybe I may can teach you Japanese :) I dont know whether I'm good teacher or not anyway lol. 
I'm fond of music(especially singing), cooking, Watching 'Anime' and Reading comic books and so on and so on.... I would love to talk with people from all over the world :)　　

Caz sounds very Japanese. Usually people write cuz.

Personally, I think if you write like this it makes you sound like a country girl or very young. -Because- is best if you want to sound like a serious adult. 

Good luck and keep writting ;)