Most Professionals know how to proceed when their systems go south
AND because they trade "other people's" money, they generally do not have
issues relating to emotional control, so they fix the technical issues and
they move forward, executing the "revised" or new system mechanically.
Amateurs on the other hand, trade their own money, and often do not
know (in detail) whether their systems have an edge. They are mostly
speculators in the truest sense of the word. I just call it ignorance and
in this business it is fatal. That (in a nutshell) is why they mostly fail.
In my thread (Beyond Price Action) I outline a simple system that has
an edge. To trade it successfully, you would need to add a few tools
such as 1) understanding of context, 2) a basic understanding of statistics,
and the 3) emotional control necessary to execute with discipline. So
what I am saying (really) is that to make any reasonably good system
work, the trader has to be willing to extend themselves past their
usual comfort zone.
It has been a long while (years in fact) since I posted on a public site
What I discovered (recently) is that most retail traders are unwilling to go
that extra mile.