I do understand, that especially as a beginner (but this also occurs years later too 
) that you may not even know what you don’t know, so it can be difficult to ask questions that help you to learn what steps you’re missing. And with a system as complex and encompassing as Unreal, it can be daunting.
Picking through that tutorial, it seems like it should give you the tools to function in the blueprint editor, but of course, it doesn’t really give you a lot of specifics on too many different things.
It might be best to ask something more specific in that case. Combinations of specific and general questions can be helpful. “How do I make an inventory system?” probably has a ton of completely different tutorials out there. “How do I fix this specific problem with the inventory system I created?” might be more helpful.
I think you might be at a point where asking specific questions related to the task you are trying to achieve will be more helpful than “where can i find a good tutorial” 
Experience will help you put together various bits. A year or two ago, I was pretty terrible with blueprints, despite having been exposed to them for years, and understanding how to use the editor, and how to make things. Experience using them in a real product was what brings me to level up and solve various problems.
So… what sort of a roadblock are you at?