So I was trying to move my shower head and it has snapped off, so I need to change it. Is it possible to do this myself, and if so what do I need to buy? I have looked online at shower arms, and they mention a standard BSP fitting? Please see photos below as to what is on the wall when I unscrew the current shower arm. Is this standard BSP? Or can I get an adapter for it? It just looks like a pipe to me I’d also ideally like the current holes to be hidden too. Also, is the white thing attached to the wall, or would this also be changed? Many thanks for any help, I really am lost!

