I am not but several of my friends are. The ones that are successful work A LOT OF HOURS. They take call on weekends and holidays and answer their phone at all hours. The ones that do not do that barely pull in a hobby income. It takes a couple of years to build enough clientele before you do not have to work like that. Variable income so having enough savings or another flexible job for a year or two seems to be the norm.
Also, there is more expense than I realized. They pay for continuing Ed, to have access to the MLS, part of their earnings go to the agency they work for and most have monthly fees for various ad type stuff.
I would recommend that you go to one of your local agencies and ask them to break out the monthly costs for a new realtor.
Most that stay In and make a living seem to love it. I know lots that do not do it that have a license.