I have two main suggestions for you:
1 - Get some proper training. This is the best way to really get going in the right direction, and follow-up training, at a point where you know which questions to ask, is essential too. And be prepared to change your way of thinking.
2 - Search this forum. Use relevant keywords for whatever you are particularly interested in, eg. templates, teamwork, import / export, rendering, modelling. People's comments to pay special attention to include (in no particular order) Link, ~/archiben, Dwight, James Murray, Tom Waltz, Djordje, Karl Ottenstein.... and many more. These guys know their stuff, and all have slightly different areas of special expertise.
Dive on in, the water's fine.