I think holding am the right choice at this time, because it can has a better impact in the future, especially now that the etherem is still in its infancy, of a course there is still a chance to increase again, I'm a sure etherem will rise to $ 4k in the near future,
3K - 4K dollars is nothing for ethereum and ethereum will be worth above 10-15 K in the mid to long term. If you do not believe in ethereum technology or cannot hold for long term, only then you can sell at the current prices and secure some profits. But if you have holding power, i will advise you to hold it for long term.
Ethereum has always been the leader in the TOP among altcoins. Therefore, since 2017, I have basically hodl it. I think it has a great future and its price will gradually rise. Remember how ETH price pumped in December 2017 from $426.87 to $823.29.