You should extract the folder itself (not the contents) inside diceywastelands/mods, but make sure to extract the folder and not the files. Then just loading the entire diceywastelands mod as per usual, should load the mods as well.
Here is what my folder looks like at the moment.
And here are the files in the folder just in case.
Btw im so sorry i replied very late!!
Is there a file i might be missing? Or is it because im using EpicGames?
*This is where my folder was originally. My first comment meant the folder not the files. So this is where the folder is when i tried the mod and didnt load.