You shouldn't. Don't sell, you may regret it.. just my opinion though, do whatever you want.

Almost everytime I'm buying something I'm buying it for too much, and almost everytime I'm selling something.. oh well, I'm doing it right before the price skyrockets. This happened to me quite a lot of times with Bitcoin. I think we should take no action at the moment, the markets are too shaky. We've seen similar falls and then the price shot up once again. Just check the all-time charts and you'll see what I'm talking about! I won't sell mine, I will just hold.