First writing

I began "italki".
"italki"始めました。

But there is nothing to write..
でも書く内容がないよ。。

And I'm already tired.
そして、もう疲れた。（おい

That's why I call it a day.
というわけで、きょうはこの辺で。

i don't know if its the correct translation but this is a better way to say this in english ^u^