on M30: EURUSD is forming a channel in red but the upper trendline is not valid yet, so we are waiting for a new swing high to form around it to consider it our trigger swing. (projection in purple)
Trigger => Waiting for that swing to form and then buy after a momentum candle close above it (gray zone)
Meanwhile, until the buy is activated, EURUSD would be overall bearish can still trade lower.
All Strategies Are Good; If Managed Properly!