YOU SAID:

This is going to be the death of me.

INTO JAPANESE

これは私の死になりそうです。

BACK INTO ENGLISH

This is about to die for me.

INTO JAPANESE

これは私のために死にかけています。

BACK INTO ENGLISH

This is dying for me.

INTO JAPANESE

これは私にとって死にかけています。

BACK INTO ENGLISH

This is dying for me.