When dealing with cryptocurrency, key points to always remember:

Security:
Always use secure, reputable wallets and exchanges. Enable two-factor authentication (2FA) and never share your private keys or seed phrases.
Volatility:
Cryptocurrency prices are highly volatile. Be prepared for significant price swings and only invest what you can afford to lose.
Research:
Thoroughly research any cryptocurrency or project before investing. Beware of scams and too-good-to-be-true offers.
Regulations:
Cryptocurrency regulations vary by country. Stay informed about the legal implications and tax obligations in your region.
Diversification:
Don’t put all your funds into one cryptocurrency. Diversify to mitigate risks.
Long-term vs. Short-term:
Decide on your investment strategy—whether you're holding long-term ("HODLing") or trading short-term—and stick to it.