I just read some of your answers to the questions put to you in regards to Fords having a headlight flickering problem after at least 20 minutes or more of driving. The problem is still there. I have found no relays or circuit breakers in this system, so I can guess that this is not a solution to a repair.
Electrical problems are nightmares to troubleshoot.
We would first look at connector's on the wiring loam for the headlights and any connectors that go through the firewall to the inside of the car. My lights didn't turn on when I turned them on. I thought it might be my fuses. I replaced them, but that wasn't it. I had to flash the bright handle to get them to come on.