Bind variable from another actor to PROGRESS BAR?

My current system is just to test if the health bar actually works. I send a raycast everytime i left click on the zombie

and everytime i hit the zombie, i add the widget to viewport with a “DoOnce” and it decreses the float variable by 0.10 untill it reach 0 wich than destroys actor (Or when i actually add a rigged character, he’ll ragdoll) removes widget from viewport and resets the “DoOnce” back to the starting so it can be used again.