YOU SAID:

I need to take the biggest, most painful steaming jobby I have ever taken in my life.

INTO JAPANESE

私は人生でこれまでに受けた中で最大の、最も苦痛な蒸し仕事をする必要があります。

BACK INTO ENGLISH

I need to do the biggest and most painful steaming job I've ever had in my life.

INTO JAPANESE

私は人生でこれまでに経験した中で最大かつ最も苦痛な蒸し仕事をする必要があります。

BACK INTO ENGLISH

I need to do the biggest and most painful steaming job I have ever experienced in my life.

INTO JAPANESE

私は人生でこれまでに経験した中で最大かつ最も苦痛な蒸し仕事をする必要があります。

BACK INTO ENGLISH

I need to do the biggest and most painful steaming job I have ever experienced in my life.