Man is buffeted by circumstances so long as he believes himself to be the
creature of outside conditions, but when he realizes that he is a creative
power, and that he may command the hidden soil and seeds of his being out
of which circumstances grow, he then becomes the rightful master of
himself.
By choosing the right seeds of thought, you can change your circumstances as per your desire. Only worry and no efforts towards the change of thoughts, will not help.
Furthermore, the alteration in his circumstances will be in exact ratio with his altered mental condition.