Opencore only showing windows

Just got opencore in my usb, goes to bios and disables secure boot and other stuff. Boots into usb. No other operating system other then windows showed up and I had no time to react and almost nuked my driver's by spoofing as a Mac. Thinks I did somethin wrong with the recovery folder. Realizes that my Linux distro wasn't popping up so it can't be it. So I don't know what to do next. This is my 1st time trying this