[mtinkerhess]

Learn blueprint scripting. It takes a little getting used to but it's essential to being productive in UE4. Once you get the hang of it it's basically another scripting language. You can get a long way without writing any C++, and because it's faster, less error-prone, and has great auto-complete it makes it a lot easier to learn UE4's APIs while working in BP than in C++.

Besides that, read the docs and learn UE's concepts of actors, components, blueprints (prefabs), actor inheritance, pawns, and controllers. Then when you want to add some C++, make C++ base classes for your blueprint classes so you put some functionality in each.

Epic has great docs, this one might be a good place to start if you have Unity experience: https://docs.unrealengine.com/en-us/GettingStarted/FromUnity