You cannot control whether a trade wins. You can control how much it costs you when it loses. That is why risk management — not prediction — is the only durable edge.
Think in R, not money
An "R" is the amount you risk on a trade — the distance from your entry to your stop, multiplied by your position size. If you risk 1% of your account and the trade hits its stop, you lose 1R. If it runs to a target three times as far, you gain 3R. Thinking in R-multiples makes every trade comparable and keeps emotion out of sizing.
Size every position deliberately
Pick a fixed fraction of your account to risk per trade — many traders use 0.5%–1%. From your entry and stop, the math gives you a position size. Never reverse-engineer the size to fit the trade you want to take. Our free position size calculator does this in seconds.
Survive the drawdown
Even a strong, positive-expectancy approach has losing streaks. The job is to size small enough that a normal drawdown never threatens your ability to keep trading. A string of losses at 1% risk is a dent; the same string at 10% risk can end an account.
Expectancy beats win rate
A 45% win rate can be highly profitable if winners are larger than losers. Plug your numbers into the compounding calculator to see how win rate, average R and risk-per-trade combine into expectancy.
The honest part
No amount of risk management turns trading into a sure thing. Leverage cuts both ways, and you should only trade with capital you can afford to lose. Everything here is educational — not financial advice.