I think you will find that there is a lot to learn in this field. The more you learn the more you will find, there is more to learn(it never ends). Be patient and learn all you can, absorb like a sponge from all the old timers you get the privilage to work beside. As Gerald stated, do a good days work for your employer and show that you're eager to learn and tackle anything they throw you into. Gerald has been in this longer than I have and has learned a few things along the way, so take his advice. I have been with my present employer for twenty years and had to start out as a laborer and earning my dues as I went. I have worked in almost every department here at sometime or another, but I enjoy the position and type of work that I'm in now and hope I can be a help to my company and continually learning as I go.
I wish you well in your quest,
John Wright