From the current 4-hour Candlestick Chart of BTC/USDT and ETH/USDT, the market is in a clear pullback phase. Combined with technical indicators and market sentiment, here are specific operational suggestions:

BTC/USDT trading suggestions

1. Trend Judgment: The price has fallen below the middle band of the Bollinger Bands, MACD has formed a death cross and the green energy bar is expanding, the KDJ indicator is diverging downwards, and the short-term trend is bearish.
2. Key Levels:
- Resistance Levels: 123,371 (Bollinger Band Middle Line), 125,778 (Bollinger Band Upper Line)
- Support Level: 120,964 (Bollinger Band Lower Band), 117,486 (Recent Low Support)
3. Operating Strategy:
- Short position: If the price rebounds to the range of 123,000-123,500, a light short can be taken, with a stop-loss set above 124,000 and the target looking towards 120,000-120,500.
- Long position: Wait for the price to stabilize at 123,371 (Bollinger Band middle line) and confirm the MACD golden cross before considering a small position to go long, with a stop loss below 122,000 and a target of 125,000.
4. Risk Warning: Current market sentiment is cautious, it is recommended to control positions and avoid chasing highs and selling lows.

ETH/USDT trading suggestions

1. Trend Judgment: The price has also broken below the middle band of the Bollinger Bands, the MACD has a death cross and the green energy bars continue, the KDJ indicator shows signs of a rebound in the oversold zone but has not formed an effective reversal.
2. Key Levels:
- Resistance Levels: 4,567 (Bollinger Band Middle Line), 4,747 (Bollinger Band Upper Line)
- Support levels: 4,388 (Bollinger Band lower limit), 4,200 (psychological support level)
3. Operating Strategy:
- Short position: A pullback to the 4,500-4,550 range can be shorted, with a stop loss above 4,600 and a target of 4,350-4,400.
- Long position: If the price falls to around 4,388 and a reversal signal appears, you can take a small long position, with a stop loss below 4,300 and a target of 4,500.
4. Risk Warning: ETH is more volatile than BTC, and stricter stop-loss settings are needed to avoid being trapped in a one-sided market.

Comprehensive Suggestions

1. Position Management: It is recommended that the total position does not exceed 30%, and the position for a single trade is controlled within 10%.
2. Stop Loss and Take Profit: Strictly implement the stop loss strategy, and after making a profit, you can gradually move the stop loss to protect your gains.
3. Market Monitoring: Closely monitor the Federal Reserve's policies, macroeconomic data, and developments in the cryptocurrency industry, as these factors may affect market trends.
4. Emotion Management: Avoid making impulsive decisions during market panic or excessive optimism, and maintain rational analysis.

(Note: The above suggestions are for reference only; the market is risky, and investment should be cautious.)