YOU SAID:
This is not the best day of my life!
INTO JAPANESE
今日は私の人生で最高の日ではありません!
BACK INTO ENGLISH
Today is not the best day of my life!
INTO JAPANESE
今日は私の人生で最高の日ではありません!
BACK INTO ENGLISH
Today is not the best day of my life!
That didn't even make that much sense in English.