How can I fix my citreon c3 automatic. Help plrsse?

I've got a citrieon c3 automatic that can also be used as manual and the other day it got stuck In 2nd gear I managed to get it home and then it died can't jump start it,no sound when turning key in ignition. Allsorts of lights flash on dash board with DS teen wipers radio don't work....Economy mode active shows up on radio panel even without the key In the ignition I'm a female so no nothing about cars...Can some one please help I would be very grateful. Thank you