Bitcoin is the king of crypto—highly volatile but dominant. Trade trends: buy dips in bull markets, short rallies in bear trends. Use stop-losses to limit risk (1-2% per trade). Key levels: watch $60K (support) and $72K (resistance). Volume confirms breakouts; low volume = fake moves. Avoid emotional trading—stick to your plan. Scalping? Use 5M/15M charts. Swing trading? Daily/weekly trends matter. Futures? Leverage kills—use wisely. Altcoins follow BTC, so watch its moves. News (ETF flows, Fed rates) impacts price. Long-term? DCA & hold. Short-term? Trade setups, not hype. Discipline > predictions. **Trade smart, not hard.**