I started back in 2000 odd, thought i knew something, easy money right! Learned more over the next 5 or so years and was very confident about what I knew. Another couple of years went by and started to have doubts about what I knew. On another few years the doubts turned into serious doubts! Not sure when itwas that I started to consider the possibility that I knew nothing was but was at least a few years ago.
Currently im real close to 'fully' accepting the fact that I know nothing about the market.