There is the way to create Simple Inventory system?

I need the tutorial that ez and simple and not outdate every time i follow inventory tutorial I alway stuck because
it have something I dont

Easiest way would be this:

It’s free and people seem to like it…

I’m new myself so cannot provide the most informed of a response, but this video series is detailed without being too bloated and he covers the entire inventory system pretty well: Introduction & Setting Up Hunger System -#1 Creating A Survival Horror (Unreal Engine 4) - YouTube