I've heard many times that you can create your own texture pack in Minecraft. Does that work on the PS4 too? So can I create a texture pack and then play that on the PS4? If yes how?
No, unfortunately you can't create a texture pack on the PS4, but you can download one from the marketplace, which costs money. You can create texture packs on the Java
It's a shame, but can I play texture packs created on the PC on the PS4?
No, that doesn't work because you have to download it from the marketplace and it will be very difficult to get something in the marketplace.