YOU SAID:

Had the best day of this whole month, and then I woke up

INTO JAPANESE

今月の最高の日を過ごした後、目が覚めた

BACK INTO ENGLISH

I woke up after having the best day of the month

INTO JAPANESE

私はその月の最高の日を過ごした後に目が覚めた

BACK INTO ENGLISH

I woke up after having the best day of the month