Gold Help

i may just be dumb, but i need to make my gold system work wait until the play button is pressed in order to start building up gold. I have it to where every second 3 gold is added , and i need it to wait till the mode is selected. Right now i have it to where

If easy button clicked- set gold(0)

Every 1 second- add 3 gold

but once i click the easy button ill start the game with 15 or however long it took me to hit the play button in amount of gold

You need another variable, such as a global variable boolean (true/false). By default the bool would be set to false. Then when you click the button you set it to true. Under the gold every 3 seconds condition, you add 'if bool = true'. This means it will only start adding gold when the button is clicked, right now it does it all the time.