Not only Ethereum suffer a price decline but also other altcoins in the market. We can't control the market value since when it reaches a high peak price others would choose to take profit. If bitcoin will also bounce to increase ethereum will follow. So I’m just holding my ethereum as I believe we will see another ath.
It can be a time to accumulate more BTC and altcoins knowing that there are institutions who already invested in crypto others might follow soon and jsut waiting for their desired price to drop for them to join in, correction usually happens whenever the price went too high suddenly and since crypto skyrocketed since the start of the year it is normal to expect that the price can still experience decline unless there are news that can cover up the correction happening.