You need to make a variable. unplug everything after scale for now.
Example for scale where you have written 12/12/12.
Click on that pin and drag in off, at the top you with be able to promote a variable. Name that scale for now.
Drag that back into the graph as Set and Get, After Q get the GET, drag off that and hit +, you should get vector + vector.
See below, this will scale X 1 evertime you hit Q. Where I have written 1/1/1, you could also promote that as a variable, so you could adjust the the game. For example in one area, he scales by 1, in another area, he could scale by 5