To answer the question, yes, some one/few make a living at this. The definition of living will and does vary from person to person. If you go by the average, according to a recent Wall St. Journal study, the average full time photographer makes $28k a year. Top five percent earns $60k. Think $60K is a lot? Factor in health care, insurance, expenses, and you will realize how little it is. 401k? Nope, so you will have to find away to save about 15% of your salary if you want any shot at retirement. Equity? Nope, once you quit, you have none.
That is not to say there are not successful photographers out there, there are, but they make up a fraction of total photographers. The forum members often get crap for discouraging others to dive into the photography business, but with good reason. Many have been there and felt the pinch. Keep shooting and good luck.