2004 Cadillac CTS WONT COME OUT OF PARK

I AM NOT SURE IF MY CAR DIED, BUT I TRIED TO START IT AND NOTHING WOULD HAPPEN, I HOOKED IT UP TO MY DADS CAR WITH THE CABLES, AND WAITED ABOUT 5-10 MIN THEN TRIED TO START IT AND IT WOUDLN'T START. I TURNED ON THE LIGHTS AND THEY ARE BRIGHT AND DONT DIM WHEN I TRY TO START IT LIKE THEY USUALLY DO WHEN BATTERY IS LOW. DOESN'T EVEN MAKE A CLICK SOUND WHEN I TURN THE KEY. I ALSO CANT' GET IT OUT OF PARK. WHAT SHOULD I TRY FIRST? AND SECOND IF THAT DOESN'T WORK. THANK YOU SO MUCH.