what I meant is you some some win and some lose, on average, you win 50% trades and lose 50%. all you lose is commission assuming wining and losing same number of ticks
Quote from bh_prop:
Your initial post suggested $10 avg losing trades with ES. Good luck with that.
But to answer your original question: most "daytraders" blowup when a daytrade gone bad becomes a longer-term trade due to inability/unwillingness to accept a loss. The problem is typically amplified by "doubling down" and eventually leads to a blowup.