Trying to add custom helmet models but the resource pack isn't showing up in game:

followed a tutorial on how to make a custom resource pack to have 3d hats and such, followed every step but can't figure our why it's not showing up in game as a resource pack. This is on minecraft 1.20.1.
I have it structured as follows 
pack.mcmeta (as seen in image)
assets/minecraft/
   models
      block/custom/.json files
      item/carved_pumpkin.json
   textures
      block/custom/.png files
      misc/pumpkinblur.png to make the pumpkin transparent
Am I missing something?