Welp, frankly, if I ever tried to use Blender or a program like that and make something, the computer would corrupt itself, explode, burst into flames, shoot lightning bolts all over the place, the universe would begin to fold in on itself, time would stop, the world would reach absolute zero, etc.
One year I had to take a class where we made a bunch of stuff in Autodesk Inventor, and really I'm not even sure how I passed.
I have difficulty applying the correct physics to certain objects and making the correct calculations. I should've taken a Physics class. I also need to know how to apply texture to an object (essential).