YOU SAID:
I have exams from day after onwards and I'm scared af.
INTO JAPANESE
翌日から試験があり、怖いです。
BACK INTO ENGLISH
I'm scared because there will be an exam from the next day.
INTO JAPANESE
翌日から試験があるので怖いです。
BACK INTO ENGLISH
I'm scared because there will be an exam from the next day.
That didn't even make that much sense in English.