I think something has been lost in communication. My psychological issues have been due to a system working to well (not a lack of confidence in the system) I became to blasé, incredulous at (within the system expected loss ratio) loss.
So happy with the system that in the past I had taken chances on greater risk than my system told me too. Rectified now though. Mechanically, it is very very easy to implement, maybe lost in communication again? As to easy or not to learn what works, well I guess this is different for different people, you need to cut through so much trading b.s. that is out there, strip everything back and look afresh.
You can be taught to trade, I'll give you that, but not everyone can, but it's the experience of trading that really seals the deal.
As to there only being two ways to trade successfully. I have personally only found one (with various variations) but how would you explain the difference between Locals, specialists, fixed income, insider traders, front runners, interbank, scalpers, super fast connection algorithm traders, position traders, news traders, George Soros, Paul Tudor Jones, Ed Sykota, anyone from the market wizard books?