YOU SAID:

and make worse what was already pretty bad

INTO JAPANESE

そして、すでにかなり悪かったものを悪化させる

BACK INTO ENGLISH

And worse what was already pretty bad

INTO JAPANESE

さらに悪いことに、すでにかなり悪かった

BACK INTO ENGLISH

To make matters worse, it was already pretty bad

INTO JAPANESE

さらに悪いことに、それはすでにかなり悪かった

BACK INTO ENGLISH

To make matters worse, it was already pretty bad