Yesterday at the level of $ 176 you can sell than now you can buy it back and hold, that's a good opportunity to take advantage of the situation because Eth is currently down and at the level of $ 163.
Definitely right now is the best time to buy again because of the drop and if you are confident about the future of ETH, then you can try not to sold it. Theres a chance for ETH to hit the price of $300 this year, so you have to decide if you are going to take the risk or you will enjoy right now. You can also learn how to practice delayed gratification, higher price will come this year.