Notice before adding more.
You might notice a satisfying stretch, comfortable pressure, or an urge to change position. Give it a moment. More force is not automatically more useful.
Change one small thing.
Try a little less weight, a smaller roll, or a gentle change in angle. You are adjusting your own self-massage, not trying to reproduce a perfect shape.
A sweet spot can move as your position changes. You can follow it without forcing yourself deeper into a stretch.
The feeling is allowed to change.
A sensation may soften, move, or disappear. That is information, not a demand to recreate it. Linger, explore somewhere else, or rest.