IMHO, and take that with a huge grain of salt, it is a bit too late to sell now, although you could still save some capital if you convert to some sort of guaranteed income asset class, and convert back to stocks when the DOW reaches 5000. That is, if the DOW keeps tanking like it has been. If you convert now, and stocks start to go bullish, you could miss the ride of your life.
Fortunately for you, your principal is low, so you have not lost that much, and like the previous poster said, you’ve got all your life ahead of you to make it up. Consider those who had $500k in their 401(k) at the start of the year, their losses are potentially in the six figures, ouch!