Hahahah well I would start at the fuel pump probably, and check all the lines and everything else to make sure that everything is tight, and if there's another component that's failed u may have increased fuel consumption so check other stuff related to the fuel system too, if u can't find a leak somewhere
I'm not sure but I think there's a pressure gauge or something u can buy that can tell u if there's a leak, maybe..... :what:
If u haven't already...I would take it into a shop that can run a vehicle inspection for like $20 so u know everything that's wrong with it and work from there