on H1: GBPUSD 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, GBPUSD would be overall bearish can still trade lower inside the blue support zone.
All Strategies Are Good; If Managed Properly!