I have To learn a lot!

how to compare a global variable and a variable I have tried a lot and it’s not working perhaps can u guys help me?

You can find the condition under “Variables” or “Variables->Global Variables” since you can check it either way around.
Depending on if it is a Number or Text variable you can choose “Value of a global variable” or “Text of a global variable” and then pick the scene variable from the drop down list: