Wow! Sounds like you're doing great so far. Not bad at all for a month's work.
Agreed about the different industries. A common misconception in the drone community is that if you can fly a drone well then you can make money. That used to be true but it's largely not anymore (unless you have the connections, which it sounds like you're building up well).
I also agree that industries like mapping, ag, surveying, are much higher barrier of entries than the real estate photos. As with anything else it's a double-edged sword. Lower barrier of entry means higher volume of competition.
I'm actually part of a team making management/compliance software. That's why I originally asked. I'm always trying to learn more about people operating drones commercially.