Replying to NS car people I need your help, weird electrical problem.

Recently my car has been doing some very weird things when I turn on he headlights, and I can't figure out what the hell is going on. (It's NOT a fuse.)

One day when I got into my car to go to work, I had no headlights. Brights, low beams, and the instrument panel were all dark. When I tried the lights again later, they worked, but the instrument panel still didn't light up. Now, when I turn on the lights, that dinging noise that the car makes when I leave the key in and open the driver's door will keep going off until I switch the lights on and off repeatedly. The power locks also stopped working at the same time.

So, what's wrong with my car, and how much is it gonna cost or how hard would it be for me to fix?