How do realtors in Miami get by?

How do you find clients? How do you make money? You have to buy your own health insurance and marketing tools and such. And literally, everyone in Miami is a realtor or has a side hustle as a realtor. How do you make this work? Especially for the realtors that have plastic surgery, fancy hairs, hairs/nails done, etc? Do realtors really make that much money??