One of the most important things in trading is to be aware of our relative edge vs quantitative edge.
A strategy that is right 40% of the time needs an average risk/reward ratio greater than 1.382x to obtain cumulative profits vs. if it is correct 60% of the time it barely needs a risk/reward ratio greater than 0.8x to obtain cumulative profits. , and if your ratio is close to 1.3x you will have a 95% probability of ending the month with profits.