YOU SAID:
I thought it would be fine for me.
INTO JAPANESE
私はそれが私にとってはうまくいくと思った。
BACK INTO ENGLISH
I thought it would work for me.
INTO JAPANESE
私はそれが私のために働くと思った。
BACK INTO ENGLISH
I thought it would work for me.
That didn't even make that much sense in English.