Tim alerted with STT news prior to anyone else. Went to ticker, no movement, I was confused. Within 30 seconds they came. Price moved fast, entry price passed before order ready.Changed TWS layout before trading day,couldn't find cancel button, on way down order triggered. Mistakenly,allow it to play. Could have taken $80 profit but got greedy, -$250 by eod. Morning gap down, -$500, lost all reason. lost confidence after this, didn't trade for 3months as I studied hard. great lesson here!