YOU SAID:
I hate school a lot, but I have good grades.
INTO JAPANESE
私は学校が大嫌いですが、成績は良いです。
BACK INTO ENGLISH
I hate school, but my grades are good.
INTO JAPANESE
私は学校が嫌いですが、私の成績は良いです。
BACK INTO ENGLISH
I hate school, but my grades are good.
That didn't even make that much sense in English.