Depending on the individual this can be a loaded question but taking the question at face value there is one real good starting point. Study the work and words of master photographers. Many photographers are what I call "cowboys," no matter their sex. They think that there is some sort of value in proclaiming that they are self taught. For the most part it just shows their ignorance.
Just recently a nice video clip of one master of photography, Ralph Gibson, came to my attention and it is definitely worth your time to listen and learn.
Too often when trying to have a conversation about photography with a self-proclaimed "serious photographer" I am presented with a blank stare when referencing one of the many master photographers available for the truly serious student of photography to study.
