I am trying your sketch and what happens is it shows the counter in the display and when i click the button it resets the counter.
I want the counter to run in the background (not visible in the display) and when i click on the button after for example 5 seconds it shows 5.000 in the display and if i then click the button after 2 seconds again i want it to show 7.000 in the display.
I feel we are getting close though, and i really appreciate you sticking with me on this HazardsMind:)