Hold, dont panic sell ever. If you trust the technology, which you should since you put your money there. You have to look at the long run, ask yourself? Will ETH be worth more than it is now in say a year? If you think so, hold. No need to rush it and risking your money on technologies you are not so confident about.

As an example I can tell you my story. Bought ETH a year ago at $12.5 . A couple months later it went down to $8. I considered selling on a loss? Never, I trusted in ETH and held al the way to todays price.

So dont panic, sometimes takes a little to get the gains but dont rush it .
Sit back relax and enjoy. :D