How do i make my sims grow up? URGENT!!!?

hold down ctrl, alt, and c at the same time to bring up the cheats console. then type in Testingcheatsenabled True. You have to put it exactly like I wrote it. After you do that hold down shift while you click on your Sim. An option should appear over there head that says trigger age transformation. click on that on and your Sim will age to the next aging stage.