Trade fewer, better
Most races are lost to behaviour, not analysis: clicking because the clock is running, doubling up after a loss to win it back, chasing a market that already moved. A plan you follow beats a better plan you don't.
1.Write the rule before the race
For example: only trade in the direction of the 1m trend, always with a stop, never more than two positions. Then check yourself against it on the results card.
2.After a loss, wait one candle
The urge to win it straight back is the revenge trade. One candle of waiting is usually enough for it to pass.
3.No trade is a decision too
If nothing on the chart matches your rule, holding cash is correct. (In Market Racers you must trade at least once to be classified, so pick your one best setup.)