It does not matter whether one thinks the market is random or not. Rule no 1, forex market can do anything. The way to make money is in your risk management. Unlike gambling where on the even odds your wins is 1:1 and losses are also 1:1, with trading you let your profit runs and control losses using stops.
In the simplest case where the market is a random walk and that the ratio of winning and losing is 50:50 you can still make money if you limit losses and let profit runs. One cannot control let alone predict the market. The only variable one can control is YOURSELF.
Many traders failed because they don't follow their system. Its all in the mind. Just remember statistically you can still make money even if the win loss of your system is 20:80. As long as you have good risk management strategy.
So, STOP looking for the holy grail system. Keep it simple. Indicators are only there to help you. They are not going to predict the market. If only ppl spend more time on risk management and less on "curve fitting" with indicators.
My 2 cents
