Arne Moe (moebow) is a member of this board and is a level 4 instructor. He lives in Grand Rapids, MN, which is not exactly next door to Green Bay, but not all that far, either. He has helped many of our members in the past, mainly by analyzing their videos, but some in person as well. It might be worth your while to contact him, to get you pointed in the right direction.
Rod Jenkins is a champion archer and great instructor who travels around the country giving seminars. You can contact him through Safari Tuff to find out his schedule. Maybe he is planning on visiting your area of the country; I don't know.
Arne and Rod follow the most common and widely used methods and style of archery in the US.
Rick Welch, also a champion many times over, is self-taught, and teaches his own style of archery. I've taken a number of lessons from Rick, and use his style myself. He travels some, but most of his classes are given near his home in Little Rock, AR, so you would have to travel. If this is a possibility you would like to consider, let me know and I will give you more information.