Learn Unity First

For just making a VR game for yourself and a few friends locally, part 10 is very useful but not the most necessary thing to know how to do.

1. Getting Started - No Scripting

2. Materials

3. Terrain

4. Physics

5. User Interface

6. Basic Scripting

7. Audio

8. Layers

9. Animation

10. Exporting your game

11. Advanced Scripting

12. Navmesh

13. Particle Systems

14. Project Settings