If I remember your entry prices for the lots you sold today, you made some money. Congrats! There is absolutely nothing wrong with taking profits. This is how money is made.
I have changed my strategy with VSTNQ a few weeks back. I stopped holding and started flipping. The air at these levels is a little too much deprived of oxygen for me to hold the stock for any period of time.
There are two strategies that I see as valid here:
1. If you bought before Feb 26th, offload enough to hold house's money only and hope for a life-changing payoff.
2. If you do not have a stomach for that keep flipping the stock. VSTNQ is a flipper's paradise, if you know what you are doing and have the time to watch the market.