I made a little example project to show you how it’s done. Every node is annotated to explain what’s going on. This should help quite a bit. I ended up doing it slightly differently than I said, it’s all done in the main pawn in the Blueprints folder.
Simply make a child class of the Base_Interatible_Item and it will be interactible. You can also do this with interfaces, but I figured I’d teach you the basics first rather than adding that extra step. If you’d like too simply research Interfaces once you’re done understanding how this works.
Hope this helps!