Update Widget Text Box

I have a text box that inside a widget.
I’d like the text box to show the variable from a calculated value of only a few nodes.
I cannot figure out how to update the text box every tick and store it in the text box.
Any help?

store a reference to your widget when you first create it.

cast to the widget, get the exposed text box variable, and “set” it.

My widget is in my level blueprint attached to an EventBegin Play. Above the widget information is the value of which I want to put in the box.
I cannot drag the text box variable to any other screen, so it just stays in the widget graph.
Can you help me with this set up?

My blueprints: