How can I overcome my difficult psychological state and feelings of humiliation and anger after ending my engagement to a girl I felt did not appreciate me, especially since I am about to get married?

The questioner is advised to turn to Allah through humble supplication, asking Him to remove his worries and facilitate for him a righteous wife, while recalling prophetic supplications for dispelling anxieties, and to believe in divine decree and destiny, and to ponder Allah's wisdom and encompassing knowledge, for perhaps Allah has withheld something from him to honor him, and that infatuation is an ailment that can be cured.