How Many Years Did It Take You to Come Across Your Trading System?

How many years did it take you to come across your trading system? And I hopefully the answer doesn't disappoint, but some of it was just dumb luck. So we're all looking at the same information, but there's 500 things that pop up in this box during the day or let's call it 100 things or 50 things. The probabilities of you taking something off or adding out a Bollinger band are just as good as a moving average - they're probably even better because they're in today.