If you keep your job then continue to give it your best effort and be a positive presence while performing it each and every day. If not for the sake of the company, then do it just so you can continue to respect the view of your own face staring back at you in the mirror in the morning. If you lose your job then just hang tough. You will find happiness on the other side. Life doesn't begin and end at the threshold of the door of Sam's Club.
Changes can be very painful. Failure to change on a personal level guarantees your failure just as surely as failure to change on a corporate level guarantees the same. Just ask the former employees of countless K Mart and Sears locations. Adapt or die. Observe what is going on around you and map your own destiny.
Good Luck to all this week!