Can't Make HDRP Skybox

After switching to the HDRP, I have experienced many difficulties. But for now, my old skybox isn't working.

After adding my HDRI skybox to the pipeline asset, it says it wants a cubemap. So I go to create a cubemap and it doesn't work. I have an unwrapped version (6-sided) of my skybox but there is no specific spot to put them in. After watching some tutorials and the GUI looks nothing like the tutorials. I have an image of what mine looks like and I just want to know how to make unity recognize my 6 sided image as a cubemap