I don't want to tell you what to do, but you are way too emotionally involved in this stock. If you don't mind me asking, but what % of your entire portfolio is in HISC? It sounds to me like you bet the farm on this one.
Honestly, the best thing you can do is sell and get out now or turn off the computer and forget about it for a month or two and then come back and check.
You need to try to take emotion out of investing. I know it's difficult. I went through the same thing with a company called CyberCare back in the late 90s. I was up a fortune...got greedy and lost almost everything I had invested in it when it went kapoot. I became emotionally involved in the stock. I promised myself never to get that involved in another stock...so far so good.