Headlights won't turn on!

I got a 67 valiant and the headlights don't work . I swapped the headlight switch thinking it was that since the dome light and gauge lights won't turn on either . After I switched it my dome lamp will work but no headlights or gauge lights. The gauge lights could just have some old bulbs but not as concerning as no headlights. So I also swapped the high beam switch thinking that could be it.. That was a no go still no headlights. My parking lamps work but I know that circuit goes thru with turn signals and flashers cuz they both work ( turn signals,flashers). What else could be the culprit? The headlights themselves? When I first bought the car they worked and once I got home and tried turning them on to go for a cruise in the afternoon. They denied my cruise lol. Any advice is appreciated ! Thanks in advance!