Cyclic Enthusiasm

I am so excited by what I'm working on right now artwise! I have been making polymer clay jewelery again. Does anybody else go from one craft to another thinking this is it I can do this thing until I die? Well, my excitement goes full tilt in a cyclic fashion. I go from art quilting to rug making to polymer clay. It seems when I learn something new or discover something new I'll think OK I AM GOING TO DO THIS AND ONLY THIS. I secretly want to be Mozart but tend to be a jack of all trades. Is there such thing as master of all?