YOU SAID:
im going to my old school on wednesday
INTO JAPANESE
私は水曜日に私の古い学校に行く
BACK INTO ENGLISH
I will go to my old school on Wednesday
INTO JAPANESE
私は水曜日に私の古い学校に行きます
BACK INTO ENGLISH
I will go to my old school on Wednesday
That didn't even make that much sense in English.