YOU SAID:

I missed school today so I am at home.

INTO JAPANESE

今日は学校を休んだので家にいます。

BACK INTO ENGLISH

I'm home from school today.

INTO JAPANESE

今日は学校から帰ってきました。

BACK INTO ENGLISH

I came back from school today.

INTO JAPANESE

今日学校から帰ってきました。

BACK INTO ENGLISH

I came back from school today.