The real test of any learning is in actually doing the thing that you learned.
Regardless of the sort of game you made, you've followed your own plans to make it in Unreal, and while there are drawbacks to way Unreal works, to have created your own project from scratch is still a good achievement. I don't use Unreal, so don't really know where to start with it. Also as most of my dev work is done on an I3 laptop with integrated graphics, I doubt my laptop would be able to run the dev suite sufficiently well to be able to use it properly.