YOU SAID:

I am going to my friend's house today.

INTO JAPANESE

今日友達の家に行きます。

BACK INTO ENGLISH

I go to my friend's House today.

INTO JAPANESE

今日は友達の家に行きます。

BACK INTO ENGLISH

I go to my friend's House.

INTO JAPANESE

私は私の友人の家に行きます。

BACK INTO ENGLISH

I go to my friend's House.