Fatigue often changes foot pressure before you notice it. Keep the contact clear enough to choose your next step.
The foot, ankle, hip, trunk, and arms work as a sequence whenever you stand, step, walk, or carry. Paying attention to the ground can clarify the whole task without forcing the foot into one perfect shape.
Retest without treating the result as proof that you are fixed or broken. Compare what changed, keep what transfers, and decide what deserves another week of attention.
Try this today
Make the idea practical.
During one faster walk, slow down as soon as foot pressure becomes noisy, then rebuild the rhythm.