YOU SAID:
my dad left me when i was three this is so sad
INTO JAPANESE
私が3歳のときに父が私を去りました
BACK INTO ENGLISH
My father left me when I was 3 years old
INTO JAPANESE
私が3歳のときに父が私を去りました
BACK INTO ENGLISH
My father left me when I was 3 years old
That didn't even make that much sense in English.