Hi Mindy It sounds like you've really found your stride. The good news is, you don't necessarily need a real estate license to manage or co-host other people's Airbnbs unless your state specifically requires one for property management (Utah generally doesn't for short-term rentals, but it's worth double-checking local regulations).
Since the co-host program in your area has a waitlist, I'd recommend building your own path locally.. reach out to other hosts in Facebook or community groups, introduce yourself, and offer your co-hosting or property management services. You can also create a simple website or social media page showing your listing, reviews, and what you offer (like guest communication, turnovers, and maintenance coordination).
You already have an advantage.. experience, customer service skills, and an understanding of how to make a property shine. Combine that with local networking, and you'll likely start attracting owners who want someone reliable to manage their listings. Keep going.. you're clearly on the right track!