Quote from OptionsCharm:
Then wether a trader truly has an edge or wether the edge still needs work becomes a question. That said, perhaps we have different understanding in what constitutes an "edge".
An "edge" means to me not only a winning method, but also conviction in such a method. Conviction comes from seeing certain things happen over and over again and lots and lots of pain putting the method to test, for years, --- we as traders know this all too well. With conviction of his/her method, a trader should have entered a trade where he/she is supposed to without too much hesitation, not "react to price movement long after a valid trade was signaled".
To me, conviction is part of the edge. If a trader is still not convinced ( believe) in his/her method after years of pain and hard work in deriving such a method, I don' know how another person can help to internalize such a conviction into the trader.
To me, an edge in trading is a favorable probability of profit over a series of trades after commissions and average slippage. How that edge is derived isn't important, but the ability to follow the trading plan that produces the edge (what you call "conviction") is crucial.
Suppose I have two trading systems. One system has a win rate of 90% and the other has a win rate of 30%. Both systems produce the same net profit per contract/lot over each series of N trades. Based on that information alone, do you have a preference for one system over the other? If you do, the very fact that you have a preference tells you that psychology is a factor in your trading no matter how much conviction you have in a particular system that's demonstrated an edge over time through varying market conditions.
I'm sure there are more than a few dozen traders here on ET who were able to profit nicely in a sim account, but unable to replicate the results in a live account. I read posts by such people all the time.
You can read all the books in the world on trading psychology, read all the "self-help" books you can get your hands on, pay someone to be your trading coach or mentor, but at some point you have to take action. You have to do the opposite of what hasn't been working. No other person can do that for you (unless you get someone else to trade your account for you).
To paraphrase William James, you can't think your way into right action; you have to act your way into right thinking.
If you have a system with a fully tested edge, you can think about how great it is 24/7, but unless you put on the trades it signals and manage those trades according to its rules, it's only a thought.
Once you do put on the trades and manage them according to the rules, and you experience the positive results
over time, the "doing" eventually brings about the true conviction of belief.