Like the others said, your learning potential isn't exhausted yet. Also, why is it important? Move to another kind of photography and learn that, go back to street and use what you just learned. Easy.
In my job I have to train people to do their task. It takes about two years to make them qualified to do the job well - but after about a year almost all feel that they can do the job and that they don't need any guidance any more, they're wrong. I feel, looking at your pictures, your at the one year stage - you have to hang in there and see more different stuff. IMHO of course.