Your win rate is lying to you
A 70 percent win rate can bleed an account dry while a 40 percent one compounds quietly. The number everyone quotes first is the one that deserves the least trust.

Ask a trader how they are doing and you will usually get a win rate. It feels like the honest number: how often you are right. But being right often is not the same as making money, and the gap between those two things is where most accounts quietly die.
What the percentage hides
Win rate says nothing about the size of the wins or the losses. A strategy that wins 7 times out of 10 but gives back three units on every loss loses money. A strategy that wins 4 times out of 10 and lets winners run to three units makes it. The percentage points in one direction, the equity curve in the other.
Same trader, same market, different exits. The win rate never noticed.
A percentage never placed a trade. The next single decision does.
The number that deserves the attention
Expectancy is the boring cousin: average result per trade, wins and losses included. It is harder to brag about and much harder to fool. Pair it with the distribution of your R multiples and you can see in one glance whether your edge lives in a few outliers or shows up steadily.
The right tail pays for the whole month. A win rate treats those two bars the same as any scratch win.
There is a second, quieter number: how often you followed your own plan. A losing trade taken by the rules is a good rep. A winning trade taken on impulse is a debt the market collects later. This is the score a journal should put first, and it is the one reps ranks your setups by.
Keep the win rate on the dashboard if you like it. Just stop letting it decide how you feel on a Friday. The percentage is a mood; expectancy and discipline are a business.