What is the (b)right etiquette for using your brights?

When driving what is the correct way you are supposed to use your brights? I get “flashed” if my lights are on and I get “flashed” if they are off. I think it’s OK to have them on as long as no one is driving towards you or in front of you? But my experience is that I get flashed if I forget to turn mine down and someone is driving towards me but that other party leaves theres on so I am still being blinded… and then you have people that drive behind you with their brights on and shines in your mirrors so you can’t see anything.