We are good at making excuses.  This has been the case since the beginning of human history.  We even offer excuses as to rationalize decisions and actions that are not in keeping with God's will for our lives.  Those excuses are often just a cover up for the truth, that we would rather be in charge of our own lives.  Rather than engage in excuse making we ought to engage in discernment and make every effort to follow God.  God goes with us and will bring to completion his will for our world and lives.