It takes you through the process by the hand the first time you turn it on. Did you not get the setup wizard?

Once you get the wifi setup, and assuming you have wifi in the house, then wait for it to get all it's software/firmware and map updates before you get too crazy setting up profiles and customizing things.

Install the Garmin Connect app to your phone too if you want all the advantages that gives you.

And don't be afraid to call Garmin and simply ask them. Support is free if you don't need anything but help on the phone.