Interested in a career in music supervision (Seeking Advice)

Graduated from Belmont University and spent 8 years independently managing musicians. One client was signed to a record deal with Sony/Ultra Music. I Left the industry after a fallout with my client to do sales for the last 3 years, but miss my passion for music and entertainment. Any advice for breaking into this field at a non-intern place in my life. I am not above interning by any means but it seems to mainly be for college credit. I have historically attended the Guild of Music Supervision meetings as I live here in Los Angeles.