How to set reference variable active/inactive?

I am currently looking to find a particular GameObject and apply it to a variable, then set it active/not active via the variable. There are probably better ways to do this, but here's the code I've got so far

(in the Start method)
currentScene = GameObject.Find("/TheGenerator/00");

(in the Update method)
if (var > 10) {
currentScene.SetActive(false);
currentScene = GameObject.Find("/TheGenerator/10");
currentScene.SetActive(true);

This doesn't work because it's trying to set the variable active, not the GameObject itself.