Given that you had to rest your foot on the switch, and that fiddling with the switch gave a temporary solution, I can't imagine it's any other component.

If you're *really* in a pinch and can't replace the switch promptly, you can remove the wires from it and connect 12v power in to the low beams. You won't be able to switch to high beams, but low beams are better than no lights at all.

You know the switch is bad - replace it. If something else is also bad, it'll become apparent... but don't don't worry too much about what might be broken until you deal with the thing that's certainly broken.

Best,

Cameron
Rose City