Lesson 10 · 8 min read
Common mistakes that blow funded accounts
Every failed evaluation fits into a handful of recurring mistakes. This lesson lists them in order of how often they appear, each paired with the counter-rule from this Academy. If your last evaluation failed, you will find it here — and the fix is already written.
The top five account killers
These five account for the clear majority of breaches. Notice none of them is 'bad strategy' — they are all execution failures around sizing and discipline.
| Mistake | How it happens | Counter-rule |
|---|---|---|
| Oversizing a 'sure' trade | Confidence spikes, size doubles, one loss = -2.5% | Risk ≤1% always — confidence is not an input |
| Moving the stop loss | Price approaches, stop 'gives room', loss doubles | Stop at broker level before entry (rule 2) |
| Revenge trading after a loss | Immediate re-entry to 'win it back' | 2 losses = platform closed (rule 3) |
| Trading during news | Spread widens, stop slips 3x, breach | No news trades unless allowed (rule 4) |
| Strategy hopping mid-evaluation | Week 2: switch to the 'better' strategy | 30 days before judging (rule 10) |
The five silent mistakes
These do not breach rules directly — they erode the math until a normal loss becomes fatal.
Six: holding through drawdown 'because it always comes back' — with trailing drawdowns, waiting turns a -1% open loss into a breach. Seven: trading the first hour after a red day with doubled size to 'recover the week'. Eight: ignoring the daily loss limit because 'the trade needs room' — the daily limit exists precisely for the trade you most believe in. Nine: not reading the funded-phase rules after passing. Ten: treating the evaluation as a race — speed is the enemy; the deadline is almost always generous enough for a 1% risk plan.
- 6. Holding losers into a trailing drawdown
- 7. Doubling size after a red day to 'fix the week'
- 8. Believing a trade 'needs room' beyond the daily limit
- 9. Not re-reading rules at the funded stage
- 10. Racing the clock instead of respecting the math
The pattern behind every mistake
Look closely: every mistake is the same error wearing different clothes — letting the outcome of a single trade matter more than the outcome of the evaluation. The trade you 'must win' and the week you 'must fix' are exactly the moments when the rules exist to protect you from yourself.
The funded traders' secret is not superior discipline genes. It is that they designed their environment so the emotional decision never gets a chance: pre-set stops, circuit breakers, fixed sizing and a printed checklist. Design beats willpower — every time.
- Every mistake = one trade mattering more than the evaluation
- Your rules exist precisely for the trades you most believe in
- Design your environment so emotion never gets a vote
- Boredom is the feeling of doing it right
Key takeaways
- The top 5 killers are execution failures, not strategy failures
- Silent mistakes erode the math until a normal loss becomes fatal
- Every mistake = one trade mattering more than the evaluation
- Design your environment so the emotional decision never gets a vote
Frequently asked questions
My strategy is fine — why did I still fail?
Because evaluations are not strategy contests, they are execution contests. Run the checklist from Lesson 7 against your failed evaluation and count the unticked boxes — the cause will be there.
Is oversizing once really fatal?
One oversized loss of 2.5–3% on a 6% drawdown leaves half your failure budget gone in a single trade — and psychologically you are now trading from behind, which triggers mistakes 3 and 7. It rarely ends there.
How do I stop committing mistake 7 (revenge sizing)?
Make the rule external: platform closed after two losses, and size pre-set in the platform's defaults so increasing it requires deliberate action. Friction beats intention.