I, who kept losing, was able to change my life through "verification" The reason I started investing was not to grow my money. I wanted to repay my parents' debt. That single-minded motive is why I started investing. But reality was not sweet. I tried methods said to be "winning", bought indicators, joined schools, and if I lost, I looked for a new method. It was a repeating cycle. What I realized then was: The ability to verify is many times more important than a method that can win. In this series, I will write without hiding based on my real experiences about: - the reason I started investing - repeated failures - encounters with backtesting - why I began to create indicators - creating reproducible rules - verification methods - the behind-the-scenes of product development - actual verification results It may not be suitable for those looking for an "easy way to win." However, If you are serious about winning consistently for a long time, I aim to provide at least one takeaway you can apply. Please stay with me until the end.