YOU SAID:

I could still function in the world, although I realized that nothing I ever did could possibly add anything to what I already had

INTO JAPANESE

私は今でも世界で機能することができました、しかし、私が今までしたことが何も私がすでに持っていたものに何かを加えることができるかもしれないことに気づきました

BACK INTO ENGLISH

I was still able to function in the world, but I realized that what I have ever done may be able to add something to what I already had

INTO JAPANESE

私はまだ世界で機能することができました、しかし、私が今までしたことが私がすでに持っていたものに何かを加えることができるかもしれないことに気づきました

BACK INTO ENGLISH

I was still able to function in the world, but I realized that what I have ever done may be able to add something to what I already had