This is my 1st year trading SMC supply demand with liquidity and premium discount... with that in mind, Id like to know if this statistic should concern me or this is just numerical probability IS 10 LOSING TRADES IN A ROW REALLY A REALISTIC CONCERN when trading a sound concept using good risk reward and .5% risk? I understand Forex is an efficient market. Ive set my risk lv. to 5% and my win rate to a respectable 40%. with 5% max draw down. I don't know what else I would need to do to mitigate my risk of ruin. After my 1st payout FX will be my only source of income. Not much room for error I will be trading 2x 400,000 accounts. Seeking 1-3% returns a month / quarter. 
Probability of 10 Consecutive Losses
Since your win rate is 40%, the probability of losing one trade is 60% (0.6).
The probability of 10 losses in a row:
0.610=0.00605≈0.6%0.6^{10} = 0.00605 \approx 0.6\%0.610=0.00605≈0.6%
So in any 10-trade sequence, there is a 0.6% chance of failing the challenge due to consecutive losses.
Probability of Failing Over 100 Trades
To see the probability of hitting a 10-loss streak over 100 trades, we use the streak occurrence formula:
1−(1−0.00605)(100−10)1 - (1 - 0.00605)^{(100 - 10)}1−(1−0.00605)(100−10) 1−(0.99395)90≈43%1 - (0.99395)^{90} \approx 43\%1−(0.99395)90≈43%
This means that over 100 trades, there is about a 43% chance of hitting 10 consecutive losses at some point and failing the challenge.
Probability of 10 Consecutive Losses
Since your win rate is 40%, the probability of losing one trade is 60% (0.6).
The probability of 10 losses in a row:
0.610=0.00605≈0.6%0.6^{10} = 0.00605 \approx 0.6\%0.610=0.00605≈0.6%
So in any 10-trade sequence, there is a 0.6% chance of failing the challenge due to consecutive losses.
Probability of Failing Over 100 Trades
To see the probability of hitting a 10-loss streak over 100 trades, we use the streak occurrence formula:
1−(1−0.00605)(100−10)1 - (1 - 0.00605)^{(100 - 10)}1−(1−0.00605)(100−10) 1−(0.99395)90≈43%1 - (0.99395)^{90} \approx 43\%1−(0.99395)90≈43%
This means that over 100 trades, there is about a 43% chance of hitting 10 consecutive losses at some point and failing the challenge.