If it only took you two weeks to transition from Surf Cam to Gibbs, 3D shouldn't be a huge deal for you.
It is different, very different from 2D and 2.5D.
If you have access to the manuals and go through the tutorials that will help a lot.
Hopefully you will be programming from Solids which you will love for ease of use once you get the hang of it.
Many 3D operations of much...much easier than one might think.
If you are using the latest version of Gibbs Cam there are some nifty new Surfacing features which are almost brand new.