Help needed ASAP !

So, i downloaded circle dock, I  was just playing around with it and then I enabled kiosk mode and hid everything else. And now what I see i just the circle dock.. NOTHING ELSE !! i read every reply to this thread, and i can't find it's icon on the taskbar.. because when I quit the dock, everything comes back and then there's no icon  in the taskbar but if re-open it then everything disappears except the dock. I really don't know how to turn of kiosk mode and make everything as it was before...