Mine does it for all movement.
Put this in your Character; the stamina will drain.
If your problem is “how do I display the stamina from the Character,” then that’s a UI Widget update problem, not a movement stamina drain problem.
Do you know how to update the value of a Slider widget from the Character?
Typically, make the Player Controller add the Widget to the player’s screen and store in a variable; make the Character get the Player Controller and cast to the appropriate class, then call into the Widget to update the value.
Separately, you need to also update your movement code to not issue any movement if the stamina is at zero.
Widget:
Character:
PlayerController:
