Profound lessons learned from losses:

1. When a new coin is launched, shorting with a stop-loss is often easier to profit from than going long.

2. For promising low-market-cap coins, it is essential to adopt a doubling down strategy to recover costs, keep some for long-term holding, and use another portion for swing trading; if the price falls back to the cost, do not use the principal to average down to avoid being trapped.

3. When friends recommend low-market-cap coins, make sure to understand their cost price. You can share the losses, but you should not buy in at a high price after they have made multiple profits.

4. When researching a project, the community chat atmosphere is often more valuable than official tweets, as many unknown negative information can be discovered from it.

5. Accurately assessing the coin price during the initial launch phase is crucial, as it determines whether to enter at a high or low price. Valuation can be done by comparing with similar projects in the same sector.

6. When allocating positions, diversify across multiple sectors to avoid excessive concentration in a single sector or ecosystem.