Four key points for short-term bottom-fishing at present:

1. Don't use up all the funds in your hand at one time, buy in batches. Don't buy many currencies, at most three, and concentrate on strong currencies.

2. When the upward trend of BTC has not yet formed, try to do some t+0 or high-sell-low-buy operations on the purchased currencies to reduce the holding cost.

3. The longer the lower shadow, the better, and the larger the real body of the positive line, the better, indicating that the bulls have stronger resistance, low-level buying is active, and the ability to carry on below is relatively strong, which is expected to stop falling and start rising

4. The three moving averages of 5, 10, and 20 days in 15 minutes form a bond, and they are all in an upward divergent state, indicating that the direction is upward, choose to buy, and stop loss when the moving average goes down.