How do I upgrade to the Catalina Beta? I already have the OS downloaded

SPECS

Dell Inspiron 5577

• i5-7300HQ
• Sk-hynix 256 NVME
• 16GB DDR4
• 1080P Display
• GTX 1050 DISABLED and Intel HD 630 (Optimus)

What I’ve Tried

-Mojave EFI on the Installer USB

EFI LINK

EFI

I know this has an outdated clover but the one on my laptop is on the latest Clover and Kext Version