My fan works fine but the lights may go dim or you hear a click sound and they go out what do i need to do

If there's no 'click' when you turn the key there's a good chance that the starter relay isn't firing. Cheap part and easy to replace.

Often the click which can be heard when the A.C. kicks in is the clutch on the A.C. compressor. Be sure that it isn't just this sound which you are hearing.
Also check the operation of the idle control valve which is supposed to raise the engine revs to compensate for heavy power drain. If this isn't working correctly, then this would explain the lights dimming under low revs.

You have a dead battery.
The procedure to fix it is as follows:
1) Charge battery.
2) check alternator belt tension. If loose, tighten or replace.
3) If still no start, replace battery.

Replace the starter. It's going out.

Try this. Turn on the head lights and have someone watch them while you try to start the Ford. If the lights go dim or out then it's time to replace your battery. The battery does not have enough power to start the motor but is fine with everything else.
Good luck and thanks for your question and I hope my suggestions help. Don't forget to rate me.
burdfrenzy
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This sounds like a bad battery, take the car to your local auto parts store. Have them check the battery. If there is some other problem they can trouble shoot the charging / starting system also.

A quick check, is turn your headlights on, try to start, if lights dim almost to off, bad battery, if they don't dim, it's a bad starter assembly.

When you turn the switch over, does the lights dim or flicker? If that's the case then the battery don't have the power it needs to turn the engine over, so it could be the cables and post need cleaning, or the solenoid for the starter is bad. The description you give with the clicking sound, gives me the thought of starter solenoid, but always do the easiest and cheapest. "clean those terminals and post first"

it is the daytime running light module.

check to see if the terminals on the battery are 1.tight, 2.free from acid buildup...