Yes, they might happen again but also won't happen again, who knows? but as you can see bitcoin fell to $17k and ETH to $890 but as soon as bitcoin surged to $24k ETH quickly crossed $2k. Assuming your fear comes true, the market will continue to fall and your ETH will also drop below your buy level, but if you are a long term holder then you don't need to panic, because bear market won't last forever, the bears will soon have to leave and make room for the bulls to come in. Think if BTC hits 100k, then ETH also has a chance to hit a new ATH of 5k USD or 10k USD which is entirely possible. So I think you should keep holding your ETH.