Those who lose in crypto, are those who sell below their invested price. As far as you are hodling, some profits await you in the future.
Sorry, but that's horrible advice. Thousands of crypto projects died and amount of passing time will bring profit to their holders.
And people shouldn't be holding worthless coins that have no reliable indicators of increasing their value in the future just because they bought them above the current value.
The price you paid has no impact on the future price.
If you paid $10,000 for XYZ coins, that are now worth $8,000, you should ask yourself a question: "If I never bought those coins and had $8,000 in cash, would I buy them now?". If the answer is No - abandon your position and get out of that investment.