Use simple trading systems. Trading systems can be robust only if there is a high number of trades in backtest history. You should have at least 30 backtest trades for each variable parameter in your trading system. Use of recent, relevant, data forces the trading system to be simple.
Rely on backtest history, preferably out-of-sample tests, to assess both risk and reward. Monte Carlo analysis is helpful to establish risk and reward probabilities because only data reflecting recent market activity is relevant to trading system rules.
Have sufficient capitalization to support your trading. Your minimum futures account size should be the sum of the required margin plus the expected maximum intraday drawdown.
There is no secret to trading success. It is a matter of having adequate preparation, of applying sound principles, using prudent cash management, and having the fortitude to sustain your trading through adversity