RedDuke,
What do you mean "non of it matters, if a trader does not use model that has positive expectancy"
Are you saying trader should focus on finding positive expectancy, then focus on all the discipline, confidence, psychology stuff?
Should the trader focus on trading skills first?
Absolutely spot on. If expectancy is negative, no money management or discipline will help. Think of roulette, no discipline and MM will help there in a long run. (one guy managed to crack it, but it was due to technological reason, if interested read the book "13 against the bank").
I would even add more, once model is found, automate. Then all emotions are gone.
