YOU SAID:

My wife is the shining star in my heart, as she is so beautiful and kind.

INTO JAPANESE

私の妻は、彼女はとても美しく、親切な私の心に輝く星です。

BACK INTO ENGLISH

My wife, she is shining in my very beautiful and kind heart.

INTO JAPANESE

私の妻は、彼女は非常に美しく、親切な心の中で輝いています。