Sounds to me that you may have possibly made a few rooky errors in Judgement...
1. Too big a position initially
2. No Stop loss when market went against you.
Almost newcomers to trading will make the same mistakes so you are normal in that respect. I did early on but learnt some poignant lessons that are now etched into my brain... at considerable expense I might add.
But on the Sunny side this is probably a good stock to have that bad experience on. As there is a "high probability" of a sharp swing north at some point soon. On the Stocktrading education front you may derived some accelerated learning/trading skill from this Short Term Trading resource ...which is a pool of the collective knowledge of some of the best STT traders on hotcopper.