10. Psychology and Common Mistakes
The discipline between the entries and the exits
The strategies in this book are public knowledge, and the risk arithmetic is simple. What decides whether a swing trader profits is what happens between the entry and the exit — the hours and days of holding, during which every position tests the trader's nerve. This chapter names the traps and the defences.
Why holding is the hard part
Swing trading is psychologically difficult for a specific reason: it demands patience and inaction at the exact moments the emotions are loudest.
- A position in profit begs to be closed ("take it before it disappears") — but the plan says hold to the target.
- A position in drawdown (but not at the stop) begs to be closed ("cut it now") — but the plan says the stop, not the noise, is the exit.
- A stopped-out position begs to be re-entered immediately ("get it back") — but the plan says the next trade comes from the next setup.
In every case, the correct action is nothing — and the temptation is to do something. The trader who can hold through the noise, honour the stop, and wait for the next setup has the edge.
The five classic mistakes
1. Cutting winners early
The whole edge of swing trading is the reward-to-risk ratio — the winners must be allowed to reach their targets. Closing a winner early ("locking in a small profit") takes exactly the trades that pay for the losers. Defence: the target (or the trailing rule) ends the trade, not the profit.
2. Moving the stop
A position near its stop gets "just a little more room" — and a small, planned loss becomes a large, unplanned one. Defence: the stop is a commitment made in a calm state; it is honoured in the emotional state. The stop is the plan.
3. Revenge trading after a stop-out
A stopped-out trade is almost always followed by the urge to re-enter immediately, bigger, "to win it back." This converts one defined loss into an undefined, oversized one — the single most destructive habit in trading. Defence: after a stop, the correct next trade is no trade, until a fresh setup presents itself on its own merits.
4. Overtrading the wrong regime
When the market is ranging, continuation strategies whipsaw; when it is trending, reversion strategies get run over. The trader who ignores the regime and trades more to "fix" a losing streak is doing the worst thing at the worst time. Defence: the regime discipline of Chapter 3 — trade the matching strategy, and trade less (or not at all) when the regime is ambiguous.
5. Confusing one trade's outcome with skill
A single winning trade feels like talent; a single losing trade feels like failure. Both are mostly noise. Defence: judge yourself over 30–50 trades, on the process (did I follow the plan?) rather than the outcome. A losing trade that followed the plan is a process win.
The practices that work
- Write the plan, then follow it. The written plan (Chapter 9) is a contract with your future, more emotional self.
- Set exits at entry. The stop and target are decided before the position exists, when judgment is clean — never adjusted mid-trade.
- Trade a defined routine. Same chart review, same checklist, same time of day. Routine reduces the scope for impulsive decisions.
- Accept the losing streak as the cost. Streaks of stopped-out trades are normal and expected. A trader who accepts them can hold through them; one who fights them will abandon the system at the bottom.
- Review, don't rationalise. After each trade, compare what you did against the plan. The gap is where you improve — and rationalising it away is where you don't.
The honest truth
Every failure mode in this chapter is a way of abandoning your own plan at the moment it matters most. Swing trading's edge is real but modest, and it is expressed only across many disciplined trades. The trader who can simply do what they said they would do — take the setup, honour the stop, hold to the target, wait for the next one — has an edge that no amount of strategy sophistication can replace. Everything else is detail.
Summary
- The hard part is the holding — doing nothing when the emotions are loudest.
- The traps: cutting winners, moving stops, revenge trading, overtrading the wrong regime, confusing luck with skill.
- The defences: a written plan, exits set at entry, a defined routine, accepting losing streaks, reviewing honestly.
- Discipline — not a better strategy — is the actual edge.
This completes the main text. The appendix condenses all five strategies into one reference table.