Piano and Music Theory Teacher, different method for each student / in Berlin

I have a bachelor in Musicology, a master in History of Music and Arts and a master in Piano performance. I completed my study in Italy (Parma University and Conservatory of Bari) and I moved to Berlin in January2020. I have 7 experience in teaching piano and music theory to musicians of all ages ("Accademia musicale mediterranea" in Taranto) and what I learned is that I like to be able to teach with success without following every time just the commonly accepted teaching rules.