Lesson 2 of the GOGA Academy concept series. Anyone can be wrong; professionals plan for being wrong often. This lesson explains why the size of a position matters more than the direction you pick, and how a risk-per-trade rule keeps you in the game through losing streaks.
The size is the strategy
What separates survivable trading from a blown account is not accuracy — it is how much each wrong call costs. The asymmetry is brutal:
| Account after a loss | Needed recovery |
|---|---|
| −10% | +11% |
| −25% | +33% |
| −50% | +100% |
| −80% | +400% |
Losing half your account does not need a 50% winner to recover; it needs a 100% one. That is why size is the first decision — before entry, before direction.
Risk per trade, not per feeling
Define risk as what you lose if the stop-loss fires — not the whole position value. A common sizing formula:
position size = risk per trade ÷ distance from entry to stopIf you risk 1% of your account and your stop is 5% away from entry, the position is sized so that the stop costs exactly that 1%. The rule keeps one bad day from becoming a bad month.
The 1–2% guideline
Risking 1–2% of your account per trade is a guideline, not a law — but it exists for a reason:
| Sizing | Typical stress | Survives a losing streak? |
|---|---|---|
| 1–2% per trade | 低 | Yes, comfortably |
| 5–10% per trade | 高 | Only a short streak |
| Full deposit | Extreme | No — one or two losses end it |
The number you pick depends on your edge, your horizon and your sleep. The mistake is not choosing a number at all.
What GOGA controls — and what it does not
GOGA's tools are explicit about the boundary. The bot enforces order size and maximum orders, loss caps by time, and the live leverage cap of 5× — those are hard risk rails. What GOGA does 不 do is decide your position size for you. That is your decision, and no tool should make it silently.
Where to try it. Take the free Academy module on risk and the X:Y rule, then set order-size and daily-loss caps on a paper bot in the paper floor and watch how the rules feel when the market moves against you. The full curriculum is in the GOGA Academy; the method behind the risk rails is in GOGA如何分析加密策略.