Android create folder in storage/emulated/0/

Hello, i am trying to save a .JSON file i export from the Unreal into folder i want to create in storage/emulated/0/**MY_NEW_FOLDER**
I tried going through the Forum/Reddit/Youtube, but without luck..
I have na app made in UE 5.4.4
Targeting Android API 30+
“use externalFilesDir for unrealgames file = TRUE”
i do require all the necessary permissions..
(but still..when i try to call them in BP they wont get called)

How do i tackle this problem?