Lev, do not be modest
You are talented and yes, you are lucky. By lucky I do not mean that you got a good spot by accident or something like that. I mean that you lucky to like subject that sells and style that has a big market. Some people like to shoot, let say, crocodiles in natural environment and there is no way they can reach your sales level, does not matter how good they are.
I do not have too many artistic people around me; I grew up in different circle. But I familiar a little bit with science job market and I believe they are very much alike. Pure science does not pay, neither does pure art. I knew a lot of scientists who said “never ever” and live the country (ex-USSR). And (you will have to trust me on this one) I’m not talking about ordinary people; I have been graduated from very special high school. If with those people with their skills, brain and devotion cannot make money in science, nobody can. And they cannot, pure science (or art) does not pay.
Some areas are easier to implement. If you’re a PhD in probability theory you will probably solve about the same problems (maybe less complicated) on Wall Street, with PhD in organic chemistry you will have to spend more time and be ready to more changes, but you will find 6 digits eventually, if you devoted to ancient history, you are in trouble. Same with photography. If you like to shoot glamour you are fine and happy, if you good at shooting realistic still life you would not have to adjust too much, if your only favorite subject is crocodiles in natural environment, you are in trouble.
Good thing about art is that you do not have to give up your crocodiles; you can still shoot them, probably even better after you earn some money for a trip to Amazon River shooting cute dogs. Earning money means work in most cases, not pleasure. You should not do a job you hate, but you do not have to love it ever, at least not every part of it. A very few who love every aspect of job they do are extremely lucky.
Sorry for my English, I do not have time to double check it.