What is the best way to break into NAV?

I am an experienced developer, professional level SQL Server, QlikView, very experienced with VB.

I want to break into NAV. There is so much to it, how did others first get into it? I have found basic projects so I now have 6 months of experience.

How did others do it?

Exactly what do you mean by break into NAV? Learning NAV?

Where do you want to dig into, Functional side OR the Technical One.