Long position opened in the morning, currently profitable.

The current 15-minute long and short boundary is 2985. As long as it doesn't fall below this position, you can go long. If it breaks below, you can place a short order.
This morning, Bitcoin and Ethereum are both testing the 4-hour support and resistance line, but there aren't any significant positive factors on the 4-hour level, so it may take some time to break through.
So during this period, I will focus on short-term trading; it's also possible to turn short-term into long-term. Each time I take profit, I leave a bit of the base position and set a stop-loss.