Buy entry key points (the same applies to selling):

1. Understand the levels, this is fundamental, for example, when buying on 30F, enter at a lower level.

2. Key points for buying on the lower level 5F: enter only when a bullish trend emerges on 1F; if there is no bullish trend on 5F, exit. Otherwise, wait for the second buy on 5F.

3. Key points for the second buy on the lower level 5F: both above and below the water can be entered.

4. Important: if there is no bullish trend emerging from a single transaction on 30F, it must be exited. Then wait for the second buy on 30F or a new first buy.