If you haven’t bought, buying at dip is always the best idea but what are the chances it will go down so dip, nobody knows. And if you have bought already i will advise not to sell except the project is useless. Cryptocurrency is for the future. keep buying small and have your target
The OP should always remind himself about the simple rule of trading - buy low, sell high.
So even if you are new in trading, that rule is very simple and straightforward.
If you buy for example btc at $8k, of course you need to sell it above $8k to gain profit.
And not sell it below $8k even if there will be panic selling in the market.
You should follow your instincts and not be emotionally affected by others.
As long as you are following that simple rule, I don't think you will incur big losses in trading.