YOU SAID:

look we agreed this wouldn't be easy we both have to be strong

INTO JAPANESE

私たちはこれが簡単ではないだろうと同意したのを見て、私たちは両方とも強くなければならない

BACK INTO ENGLISH

Seeing that we agreed that this would not be easy, we both have to be strong

INTO JAPANESE

これは簡単ではないと合意したのを見て、私たちは二人とも強くなければなりません

BACK INTO ENGLISH

Seeing that we agreed that this would not be easy, we both have to be strong