OK, it does sound like flooding,
Click on the pic to expand.
That's the ECU box which is under the bonnet near the wipers. You have 4 large phillips screws to remove and the cover lifts off.
See if you can spot the same relay and pull it out. That will stop any extra fuel being added, and then crank the car over a few times to clean it out.
It'll usually almost catch midway through and stall again afterwards.
Pop the relay back and try starting again, and it should fire up.