Trading is 90% psychology, but
- you can't build confidence without a profitable system.
- you can't have consistent gain without a profitable system.
- you can't be disciplined without a profitable system.
- you can't win without a profitable trading system.
Trading gives you money, in order to protect your money risk management is paramount.
What do you mean by profitable systems, I hope you don't mind giving further explanation to that since it seems you have been mentioning it over and over again and if you don't give further clearance to what you mean it becomes obvious that you may not get the right replies for this thread.
At some point, I thought what you mean by a profitable system is a workable trading mechanism or skills that give constant profits.
A trading strategy or trading system is nothing more than a series of steps a trader follows which according to them and their backtesting will on average give them profits.
However a trading system is not everything, because if it was then becoming a winning trader would be as easy as just finding those steps and follow them no matter what, but there are many traders out there with solid strategies that still lose money even with such system, so we need to find another way to explain the failure of those traders other than blaming their strategy.