You should consider buying cryptocurrencies when the market shows signs of healthy correction or is at a strong technical support point. It is ideal to buy after a controlled drop, when there is excessive fear in the market (contrarian indicator), or during accumulation phases before a possible rebound. Researching fundamentals, news, and global events is also key. Avoid buying at historical highs out of emotion or FOMO. Use technical analysis and manage risks with stop-loss. If you are a beginner, the periodic buying strategy (DCA) reduces the impact of volatility. Always invest only what you are willing to lose and diversify.