At 66.46 you have a ways to go. Good advice on the three wedges. Definitely the way to go.
You can also drop your average by beating Legends in match play, and by entering Tour Master Ready Goes. Placing in the top 3 will definitely drop your average. That was the key for me...just got promoted two days ago.
But be careful what you wish for. At Legend, you are playing a much more difficult game.