Common mistakes in trading
Most trading mistakes are not exotic. They are ordinary human reactions, applied at the worst
possible moments, repeated until they cost real money. The six below account for the clear majority
of painful support conversations we have witnessed, and none of them requires bad luck to ruin a
quarter.
1. Risking what you cannot afford to lose
The founding error, from which all others flow. An account funded with money you need is an account
you will manage fearfully: fear closes winners early, holds losers too long and treats every drawdown
as an emergency. Size your capital so a total loss would be disappointing, not destabilising, and
everything downstream becomes easier.
2. No exit plan before entry
Deciding what would make you close a position is easy before you open it and nearly impossible
after. Write the exit conditions down first: the profit level, the loss level, and the time horizon
after which you will reassess regardless. A plan you can point to is what turns a bad trade into a
small cost of doing business rather than a saga.
3. Moving stop-losses
A stop-loss exists to answer a question you cannot answer objectively in the moment. Sliding it
further away to give a losing position room converts a defined loss into an open-ended one, and the
market has no opinion about your willingness to accept it. If a stop keeps getting hit, the problem
is the trade thesis or the sizing, not the stop.
4. Overtrading
Activity feels like progress, but every entry carries costs and each decision is a fresh chance to
be wrong. The traders who last do less than the traders who burn out, not more. If your strategy
cannot explain why this specific trade exists, the trade does not need to exist.
5. Chasing performance
By the time an asset's recent run is the first thing everyone mentions, the easy part is behind it.
Buying because of a number you saw yesterday is handing your decision to strangers. Decide what would
make an asset worth holding, then let the price come to your criteria or let the opportunity pass;
there is always another one.
6. Ignoring costs
Spreads, commissions and conversion fees are small per transaction and relentless in aggregate. A
strategy that wins on paper can lose to its own costs at high frequency. Read the
fees page with the same attention you give a chart, because costs
are the one part of trading that never fluctuates in your favour.
Manual trading versus automated trading
The debate is usually framed as a contest, which is the wrong frame. Manual and automated trading
are different jobs with different demands, and the right question is which job you actually want,
and can actually do, given the rest of your life.
What manual trading genuinely requires
Manual trading means you are the system. You watch markets, form views, execute, review and
discipline yourself, repeatedly, for years. Done seriously it is close to a profession: the traders
who survive are the ones who treat it as one, with journals, defined processes and honest
self-review. The reward is full control and full learning; the cost is time, and exposure to your own
inconsistency precisely when stakes are highest.
What automation genuinely changes
An automated system replaces the watching and the execution with rules applied without mood. It
does not get bored at hour six, does not revenge-trade after a loss and does not fall asleep, which
matters in markets that trade around the clock. What it does not replace is judgement: strategy
selection, sizing, and the decision to keep running or pause a system remain yours. Automation
enforces discipline; it does not supply it.
An honest comparison
Manual trading suits people who enjoy the process itself and have the hours to give it. Automation
suits people who want exposure to markets without markets becoming their hobby, or who know their own
emotional biases well enough to prefer rules to discretion. Many experienced traders use both,
automating the mechanical parts and reserving judgement for the decisions that benefit from
experience.
Where Brunevo sits
Brunevo exists for the second group. The engine applies probability-based analysis continuously,
inside limits you set, and reports in plain English so the judgement calls stay informed ones. It is
a tool for consistency, not a substitute for deciding what risk is acceptable; the
risk disclosure is blunt about that boundary, and so are we.
The psychology of trading
Markets are machines for extracting decisions from human beings under uncertainty, and the
decision-maker is where most of the variance lives. Three patterns below explain most of what goes
wrong, and each has a practical counter that does not require becoming a different person.
Loss aversion
Losing hurts roughly twice as much as the same gain pleases, which is why holding losing
positions feels more natural than closing them. The counter is externalising: set exit rules while
calm, then treat the rule as the decision and the moment as merely its execution. This is precisely
what automated strategies do, and why their worst outcomes are usually smaller than a human's worst
outcomes under the same conditions.
Recency bias
The last three days feel like the truth, whatever the last three years said. After a winning
streak the market feels knowable and sizing creeps up; after a losing week the same strategy feels
broken. The counter is the written record: your journal and the weekly reports exist so that
decisions are made against evidence, not against the mood of the last few sessions.
FOMO and the crowd
The fear of missing out is not a strategy; it is an emotion wearing one's clothes. Entries made
because everyone else already made them buy the most crowded, latest part of a move. The counter is
criteria: if you cannot state, before entering, what would make the trade wrong, you are not making a
trade, you are buying a lottery ticket with worse odds and no jackpot.
Practical calm
Three habits carry most of the weight. Review weekly rather than hourly, because noise dominates
short windows and clarity emerges over longer ones. Pre-commit to rules during calm periods, when you
are the most sensible version of yourself. And keep the account small enough that no single day can
command your emotions, because a calm trader with a modest account outperforms a genius having a
crisis. If any of this sounds like you, you are in good company: it sounds like everyone.