The fans started with 5000u, and planned to double it in 7 days. On the second day, it is currently 8139u.

The direction is wrong. Just stop loss and it's over.

It's only 1681u away from 10,000u. Be sure to set a stop loss point when entering the market to protect capital. In an unpredictable market, not setting a stop loss is equivalent to being exposed to risks without protection.