YOU SAID:
When I was six years old I broke my leg.
INTO JAPANESE
私が6歳の時、私は私の足を壊しました。
BACK INTO ENGLISH
I broke my leg when I was 6 years old.
INTO JAPANESE
私は6歳のときに脚を折った。
BACK INTO ENGLISH
I broke my leg when I was 6 years old.
That didn't even make that much sense in English.