What is rather amusing to me, when you have reached the top rung, your area of "happy zone" is quite small and when you seek a different area of trading, you back in "Unconscious Incompetence". After I developed risk management unit, ie Hedging, wanted to learn options for profits a decade back, it was so different than hedging, back to step one, then climbing the steps different way other than using the Greeks, found it easier as it was closer to how I normally trend trade.
I think it is far more harder to learn how to trade today than 41 years ago, it is like going to internet and trying to select a DVD player, just too many choices today. And the hardest to learn is charting, but once you learn the ins and outs, you have best ways as most of the older traders are a where, to buy support and sell resistance and using tight stops.