I can't stand it any longer.
Has your new light fitting already got connector blocks on it?
Does the switch for this room control just that one light, or is there another light in that same room?
If there is just ONE light controlled by one switch in that room, then
TURN THE POWER OFF.
Connect ONE of the reds from the cable that has two reds to the LIVE terminal on the light fitting.
Connect the remaining red from that cable, and the other two reds from the other cables to a separate connector block. These DO NOT connected to the light in any way.
Connect the blacks to the NEUTRAL on the light fitting.
Connect all the bare earth wires (making sure they are all sleeved with green and yellow sleeving) to the earth terminal on the light fitting.
So, four connections in all. Have you got enough connectors to do this?
And, you might want to centralise the ceiling bracket a bit better, the fitting won't be in the middle of the artex pattern and will look terrible.
