Any one who wishes to become a student working toward initiation, must read the "Beginner's Training Manual" - Italian Witchcraft by Raven Grimassi. So if you have an interest, read this book completely, think about the concepts and have questions ready before you look for a teacher. It has been my experience that one cannot be a partial Strega or Stregone. One either is or is not. There are many paths, this is but one.
Studying with a teacher typically means being willing to start fresh. Please be aware that what is published is more of an "outer court" introduction to Stregheria. The initiate Ways are taught by the teacher, and they DO differ from the books. Everyone comes to a tradition with experience and history. Some come with unpleasant baggage from other traditions. Some come with a wealth of positive experiences that may be different from what we practice. Everyone starts anew.
One becomes a member by being initiated into the Tradition by a Priest or Priestess after having dedicated to our ways and completed a course of study. As a Mystery Tradition we can only be taught by a Priest or Priestess and yes, this does mean joining the "group". Stregheria is meant to be a complete system practiced in groups. So anything other than group participation takes us a step away from the Tradition - a Tradition we are sworn to keep.
If you've "read the manual" and are still interested, please leave your contact information and a brief introduction on the comment section of this post. The comments are not posted until they are moderated. So your information is private and reviewed only by me via the website and later, with your permission, by a very limited number of potential teachers.
Blessings in your search, Nola