Strong bias = dangerous trap

The strongly biased market of the last two days (sharp decline of the euro) made me trade whithout a safety net. Price went to -13 on the second trade (as the max. -10 stop was unefficient yesterday) and I was ready to close with a big loss, as the correction could drive much deeper. Suddenly the price scetched a local lower high and dropped like a stone! I closed at +5 and I couldn't believe I was on the positive side!
Not very professional trading, really...Like a newbie, again..