This post is great for absolute beginners. When I started with Unreal Engine, I had to jump into it with a project. I ended up shelling out the cash for a udemy course (The Unreal Enging 4 Mastery course) and even though I havent finished it to this day. It has helped alot. Not to mention i've got a few years of VFX for film and tv production under my belt now, so the concepts weren't too foreign to me.