It’s not uncommon for someone to miss the classic view of the control panel… the new look has everything sorted into a few categories so that what you’re after may take a couple of layers to find.
For example, let’s assume that I’m looking for the power settings on my laptop. When I open the Control Panel I initially see this:
With no direct reference to power settings, so it’s time to guess. It’s under System and Security but if you tried any other category you’d have to go back to the main screen and try again.