Why Traders Struggle With Adherence
One of the more interesting experiences I have had over the decades is reviewing other traders’ plans. Many look ideal on paper with all conceivable contingencies covered. However, in reality, the execution is often tremendously flawed. In one instance, I reviewed a plan I considered flawless, but when I reviewed this trade’s results, the trade bore no resemblance to the plan. If the plan said go long, they would go short; if the plan said go short, they would go long.. The plan said to reduce risk, they would go all in.
As expected, the account blew up.
But this raises the question as to why it is so hard for humans to adhere to anything.
Particularly, a trading plan.
My view is that humans are wired in ways that make adherence to any structured behaviour extremely difficult—especially in a fast-moving, emotionally charged environment like trading. Our psychology fights against us at every step.
1. The Future Feels Distant, So Risk Feels Unreal
Traders intellectually understand the danger of violating stops or skipping signals, but the consequences feel abstract. Future drawdowns, blown accounts, or missed trends don’t create enough emotional weight in the present moment.
Humans discount future pain. We choose immediate comfort over long-term survival.
That’s why a trader widens a stop “just this once” or avoids taking a loss cleanly. The brain values short-term relief over long-term integrity.
2. The Fantasy of the “Better Tomorrow” Trader
Most traders believe they will be more disciplined next week. They assume their future self will magically be more patient, more organised, more consistent. How often have you told yourself you will go back to the gym or start eating sensibly next week?
The person who lies to us the most is ourselves, and the lies we tell are the most effective because we know ourselves so well.
The future you has the same brain, the same fears, the same biases.
This optimism bias creates a permanent gap between theory and practice. Traders delay discipline based upon the false premise that it will become easier later.
3. The Side-Effects of Good Trading Hurt
Good trading is boring – there is not much variation in the daily or weekly routine. Boredom is a form of discomfort.
When a rule consistently creates discomfort, the trader’s brain looks for ways to avoid the pain—even if the rule is objectively correct.
Breaking the system becomes a form of emotional relief – the boredom has been relieved.
4. Ego Resists Rules
I have always found that the moment I think I know something is the moment it all goes pear shaped. Trading requires humility. Following a system means admitting that your instincts are inferior to the rules you built. This creates a subtle identity conflict.
Many traders unconsciously preserve their ego by overriding the plan:
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“I know better than the signal.”
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“I’ll just give it a little more room.”
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“I don’t need that stop today.”
Breaking the rules becomes a way to protect self-image.
5. When Bad Behaviour Is Rewarded, It Becomes Habit
Occasionally, when you widen a stop, the trade recovers. Occasionally, skipping a late entry avoids a loss. Occasionally, improvisation works – this is called luck, but we look upon it as a reflection of our skill.
This intermittent reinforcement is highly problematic.
It teaches the brain that poor discipline might be rewarded. And when behaviour is rewarded even one time in ten, it becomes persistent and hard to extinguish.
6. Complexity Kills Consistency
The more complicated a trading plan becomes—multiple indicators, exception rules, custom position sizing—the less likely you are to follow it under pressure. It may make you feel clever and generate the illusion of control, but good trading is not about trying to convince yourself how smart you are.
Your bandwidth is limited, and under stress, it contracts dramatically.
Suppose a plan that seemed elegant during backtesting becomes impossible to execute in real time. In that case, the default position is to revert to type and start to fulfil the need for entertainment that drives so much of a trader’s motivation.
Simplicity works, but our ego gets in the way of accepting this.
7. The Craving for Novelty Overrides the Need for Repetition
Successful trading is often monotonous. It involves repeating the same actions, day after day, without excitement.
But the human brain craves stimulation.
This craving pushes traders toward impulse trades, unnecessary indicators, or hunting for “something new” when the existing system is performing perfectly.
The desire for novelty is one of the strongest forces pulling traders off their plan.
8. Discipline Without Immediate Reward Feels Pointless
A trader can follow their stop perfectly today and still lose money. They can execute flawlessly for a period and still experience a drawdown. But this is how trading works – it is the system doing its job of culling losses quickly and giving winners time and space to get going.
The lack of immediate reinforcement makes the disciplined behaviour feel unrewarding.
Without a clear payoff in the moment, adherence decays.
Humans naturally repeat what feels good now—not what is statistically beneficial months from now.
Adherence Isn’t Willpower—It’s Infrastructure
Most traders think discipline is about toughness. It isn’t.
Discipline is about designing a trading environment that acknowledges human psychological limits:
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Simple, testable rules
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Predefined automation or triggers
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Ritualised scanning routines
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Written commitments
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External accountability, such as an accountability buddy
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Pre-programmed stops rather than discretionary ones
You cannot rely on willpower in a domain where your psychology is actively working against you.
