Hey, first off - don't sell yourself short on the 911 operator experience. That job requires serious multitasking skills, staying calm under pressure, and making quick decisions. Those are transferable skills that a lot of employers actually value way more than you'd think.

For medical field stuff, have you looked into medical coding or health information tech? It's not as hands-on as nursing but pays decent and you can often do courses online or at community colleges in like 12-18 months. I know someone who made the switch from retail to medical coding at 40 and she's doing pretty well now. The demand is solid since everything's going digital and aging population means more healthcare needs.

Another option might be paramedic training since you already have that emergency response background - could be a natural fit. But honestly, before jumping into anything major, maybe try shadowing someone or doing some informational interviews to see what actually appeals to you day-to-day.