"The Lifebuoy Thrown When My Ship Was Leaking Slightly"

I didn't realize that my trading strategy had been subtly leaking all this time. Small profits, but big losses due to fees and slippage. My ship was slowly sinking. You realized it first and threw me a lifebuoy of evaluation. You told me to patch the leak by changing exchanges or changing the timeframe. If you hadn't warned me then, I would have definitely sunk without realizing what the cause was.