YOU SAID:

How could this happen to me, I made my mistakes

INTO JAPANESE

どのように私に起こることができた、私は間違いを犯した

BACK INTO ENGLISH

How could I have happened, I made a mistake

INTO JAPANESE

どうして私は起こったのだろう、私は間違いをした

BACK INTO ENGLISH

I wonder why I happened, I made a mistake

INTO JAPANESE

なぜ私は起こったのだろう、私はミスを犯した

BACK INTO ENGLISH

I wonder why I happened, I made a mistake