Develop new VR project for assembly product

Greetings,

Hello all, could someone help me to teach me how to develop new VR project like this one VReate - "Virtual Reality engineered assembly training for education" (VR Montagetraining) - YouTube but more simpler, and i don’t have any basic knowledge of Unreal Engine. I just need to know where i start my new project

Looking forward for your help,
Thanks