The entry was bad, I purchased too early, therefore miscalculating the dip. Emotional mistake. I was too eager to make a trade after a long absence from trading. The dip was not very far from my exit, but I took my self out of trading; 1) to avoid wasting a second Day trade (under PDT rule) for this account , and 2) to penalize myself for not being in right frame of mind. RJET went on to bounce within an hour, and eventually break out to new highs. New rule: If first trade lacks discipline,stop