Don't chase the hype and sell at the bottom; learn to hold patiently. Market volatility is high; a 50% increase in a day is normal, and an 80% drop is also normal. Beginners love to buy high and sell low. It is recommended to invest regularly by buying Bitcoin or Ethereum at fixed intervals each month for long-term stability. Short-term trading? Unless you're a genius, avoid leverage and futures; those are cash cow harvesters. I've tried it—liquidated three times, it was heartbreaking.

Diversify; don't put all your eggs in one basket. Don't just buy Bitcoin; also look into DeFi, NFT, Layer2, and others. But don't be greedy—choose 3-5 reliable projects. Spread the risk; there are many black swans in the crypto world. If one project fails, you won't be wiped out entirely.