how do i connect to my wifi
The way you connect to a WiFi network depends on how you connect to a WiFi network, which we don't know.
The most common arrangement is where you connect to the router provided by your Internet Service Provider (ISP). Your ISP may refer to this as a gateway. If that's your situation, contact your ISP. They will show you how to connect to your WiFi network.
The next most common arrangement is where your internet service is provided by an ISP, but you supply your own router. If that's your situation, you will find detailed instructions for connecting to your WiFi network in the router's owners manual.