3-D Maze/HumanAirway Prototyping Help (New to Unity)

Hi everyone, I'm new to Unity. I'm trying to develop a prototype 3-D maze or human airway model in Unity and was wondering how hard and long it would take me with no knowledge. The human airway model, would be just that, but the maze would be a small maze, nothing too big or fancy, probably just a maze with walls.

For background experience:
Programming -- Python, Java, HTML, CSS, Javascript, Angular, and SQL.
Design -- Photoshop, Illustrator, Microsoft Paint

If ya'll need anymore background knowledge about me to correctly estimate the time it would take me to prototype what I'm trying to do, please don't hesitate to ask! Please, any help would be appreciated.

 

Check out catlike coding for some general tips on maze generation in Unity.

On the human airways, they are probably better described as a tree then a maze. A simple branching tree isn't to difficult to create.