(forgive me, I literally have only one hour of experience with unity and java-script!)
So I just downloaded Unity and I made a new project just to see what it would be like. And after a while I realized I should watch some tutorials first. So I exited that project without saving and deleted it. Keep in mind that the camera navigation was working just fine. As soon as I made a new project for the Roll a Ball Game tutorial I realized that my camera was completely static. Also it seems that I don’t have the ability to edit anything in the little testing window. (Again, sorry I don’t know any terms yet). And anything I place is off in the distance. I’ve been messing around trying to find solutions for a while now, but due to my lack of knowledge I have no clue what to do.
This tutorial should help 