As an Art Critic, your job is to discuss and evaluate the visual aspect of art. Critics put into words the meaning and message that the artist tried to convey. A day into the life of a critic might be quite boring. They usually go around art galleries and museums looking for paintings or pieces of art to write about. It very common for them to work writing newspapers critic columns of blogs. It seems an interesting job but maybe a bit boring. It requires having a strong personality and being a risk taker but also being mindful of your own words. The person needs to have critical thinking and being very intellectual.
As an Art Historian, there are many things you can do. It's basically a mix of art, history and a bit of philosophy and literature. Art historians do a lot of research grounding on a specific field. They work at museums, art galleries, universities and even as freelancers. It requires to have a lot of long term memory and being good at many things such as arts, literature, history, geography, and philosophy. As there are many places to work in and many fields to ground on, a day in the life of an art historian might be quite interesting and busy. But it is surely full of amazing things to work on.
As an Art Collector, your job is not only to buy important pieces of art but also to study and get to know them. Art collectors know about what they collect and usually, they base on a certain style or type of art. They study a lot about history and mainly on the style they are most interested in. It requires a lot of knowledge but also a lot of time and money to invest. You need to have a proper space where to store and even exhibit the works that you buy. It is a hard career because you need some time in order to be successful and well-known. A day in your life might include some reading of art critic columns and books, visiting art galleries, getting to know local artists, traveling to different museums or artistic places. It seems to be a thrilling and adventurous career but it requires too much effort and money to be really successful in it.
As an Art Gallery Owner, your job and responsibilities are much bigger. You own a business so is not such an easy thing. Many gallery owners started as collectors and they often have a lot of many because both careers require money to be invested first. Gallery owners need to be trendy, innovators and intellectuals. It is for sure that they need to know about art, history, and literature. They have to be updated on the new art trends and artistic currents. A day in their lives must be very busy but usually really fun. They work in their own galleries, sometimes they go around other galleries or expositions to keep themselves updated. They might read art critics as well and some books too. It seems a fantastic career but it takes a lot of time, effort and endless money to achieve it. You need to start low and improve over the years. It might take some time to have your own gallery but is surely not impossible.
Taking into consideration your personality, I would suggest you get into the art gallery field. With your photography skills, you can open up your path to the art galleries and maybe start saving money to be a collector or to own a photography gallery or art gallery. You are ambitious, patience and very intellectual, you just need some more experience in the field, time and money in order to be successful in the world of visual arts.