When I started modeling, the first think I tried was Spatch. I had massive problems getting the stuff I generated into Poser in a way that looked good after rendering. I had holes in the mesh, and visible breaks in the model too. Believe me, your questions aren't stupid, it's more that the whole thing is quite complex.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.