Wifi button is bot showing up in control center..

This could mean a couple things, but usually the WiFi being gone altogether is indicative of a hardware failure. Or the WiFi service is disabled.

Assuming you're running Windows, I would right click on your Start menu and select Device Manager in. the list. Within that you should be able to see if there are any issues with any Network devices. If there is an error it will usually be obvious when you open the menu.

Check and see if your WiFi card is even present in the network devices. it would usually be listed specifically mentioning WiFi or mention specific wifi standards (n, ac, or other).

If it's not present, likely you'll need a new Wifi card. You can replace the internal one, but they make lots of USB WiFi adapters as well.