Speaking of menus, one of the cool things about Blender is that the menus can be drastically reconfigured and the setup is then part of the file one saves. This means that the default new file can be set. For example I have all the animation stuff disabled because it's irrelevant to my needs.
I tried to use it to model my house, I spent about an hour just trying to locate the menus I needed the gave up.
Good luck!
I know what you mean - I use TinkerCAD for stuff like that because it's beholden to what can exist. Blender isn't.
It might seem like a weird thing to say but if you've ever played a 3D video game you'll have encountered objects that can't physically exist. For example trees often have their leaves as 2D models. They're not really thin, they literally have zero thickness - something that's possible in a digital environment but not in the real world.
A while ago I modified the Tiny Tina model from Borderlands 2 so that I could print her for the missus (Tiny Tina in that game will sometimes shout "Nap time!" and faceplant onto her bed. The wife has narcolepsy and this cracked her up). Tiny Tina's skirts are textures (as in pictures) on top of some geometry that doesn't fully connect with her midriff - because they don't have to. This is what's known as "non-manifold".
So here's a cube with one side missing:
No matter how far we zoom in, the walls have zero thickness.
CAD software doesn't allow for this because it's designed for physical objects, as I understand it. Blender is more general purpose and is fine with whatever you want to do.
