Try everything. Photojournalism, fashion, portraiture, nudes, whatever. You won’t know what kind of photographer you are until you try it. During one summer vacation (in college) I worked for a born-again tabletop photographer. All day long we’d photograph socks and listen to Christian radio. That summer I learned I was neither a studio photographer nor a born-again Christian. Another year I worked for a small suburban newspaper chain and was surprised to learn that I enjoyed assignment photography. Fun is important. You should like the process and the subject. If you are bored or unhappy with your subject it will show up in the pictures. If in your heart of hearts you want to take pictures of kitties, take pictures of kitties.
Have a look at Alec Soth’s work.