Defense recommendations

Do not chase purchases when the price is at a short-term peak.

If you are in a position with a profit of >5%, gradually take partial profits to lock in gains.

Maintain a clear stop-loss (3–5%) for new orders to avoid 'buying the top'.

If BTC drops below 118,500 USD, it is advisable to reduce the proportion of altcoins immediately due to the risk of widespread selling.

Only hold medium-term positions with coins that have strong news & momentum (ETH, SOL, LINK), and be flexible with other trades.