YOU SAID:

My leg is broken because i was dumb

INTO JAPANESE

私は愚かだったので、私の足は壊れています

BACK INTO ENGLISH

I was stupid so my leg is broken

INTO JAPANESE

バカすぎて足が折れた

BACK INTO ENGLISH

I broke my leg because I was so stupid

INTO JAPANESE

バカすぎて足を骨折した

BACK INTO ENGLISH

I broke my leg because I was so stupid