To set up a guest network for your home Wi-Fi, here are the steps you should take:

1. Check if your router supports a guest network and set up a separate SSID for it.
2. Make sure your SSID is not visible now. Open the wireless settings of your router and toggle the SSID broadcast to off.
3. Create a unique, secure password for this network.
4. Set up the security encryption on the guest network and select appropriate settings according to the network you are setting up
5. Enable the Network Access and MAC filtering to ensure that only you can access the guest network.
6. Disable file sharing for increased security on the guest network.