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 to protect your money risk management is paramount.
Proper risk management will help you protect your capital. Applying it correctly, your account will never be blown out. But as you said you had to have a profitable system. That will determine your success. Your risk reward ratio, how much time do you need to get in front of charts, and how many research should you need? And after that, the battlefield of your own psychology. If one missing, your system will be flawed because all of these complement one another to a successful; trading.