Welcome Zanda. If your totally new to DSLRs, I would suggest starting in Aut and then looking at what settings the camera selected for various scenes.
After that, try some shots using Aperture or Shutter Priority and look to see how the camera adjusted.
Finally, if you haven't already done so, read the manual front to back.
You can also look for local camera clubs or photography classes in your area
Check out Nikon's Digitutor also.
Nikon | Imaging Products | Digitutor