I'm sounding like some esoteric douche there )
I don't think esoteric douche is posting here anymore. His forum membership was suspended over a controversy related to flushing chemistry or some such thing. I could be wrong.
Anyway, sounds to me like somebody may be watching too much Scott Kelby. While I have great respect for Kelby and what he has created and done for photography, he has a tendency to go overboard. He seems to think even people who don't make a living in photography need to have a specialty area. I don't agree.
The first thing you have to do is take the kinds of pictures you want to look at. I like social documentary, candid portrait and such so I do a lot of that. Sometimes I like to look at pictures of flowers, so sometimes I'll take pictures of flowers. I have a whole gallery of boxcar graffiti. Some days I go over to the waterfront and take pictures of ships and boats. Sometimes I'll go out at night and see what I can see interesting in the contrast of dark and lights.
If you like a particular type of image, devote most of your time and energy to that. Do whatever it takes to satisfy your need for what you think is a good picture. Photography is not like marriage -- you don't have to wed a certain specialty and just look at all the others, you get to have them all!
Imagine how dreary the world would be if you didn't take a picture of your family on a beach in front of a glorious sunset because "My specialty is shooting stamp collections."