Dim and night lighting not working?

Here is video and photo you can see the problem:

Thanks for your answer.
I tried all that and I used a new indicator lever and the rheostat is down by the way it work as it should" but nothing changed the dashboard didn't Dim and the nightlamps didn't chain/get on.
As I wrote before, sometimes they work suddenly when I'm driving or before without I do anything fix I just hear a sound like tek coming from inside therefore I suspected that there is a broken relay.
I didn't know but think maybe it can be a DIM relay. Or any other relay or fuse have that job.
I'm sending more photos and videos and I hope they can help.
All lamps outside and inside reading and roof light working, and they are new.
Best regards again, Eyad.

In video nr2 you can see the DIM relay in the diagram. In that little box there are 2 relays for head light and dim and 4 fuses for high lights and low lights.

If I understand you right so when I turn the indicator lever to on so the low blub low lights and parking lights are on, and when I put the indicator lever down so the high light get on.

There is no problem in that relay as I think.

My problem is that it's very hard to drive at night without I can't see for example the cd player lights and AC lights and the dashboard keep high.

As I can see the fuses are good.

Do you know if there is a diagram for all relays in the car?
I found 2 relays behind the glove box. And they seem to be ok. And 3 relay on the driver side behind the fuses bix abd they are okay too.