iMac 12,2 Won’t install anything! Need help!

I’m at a loss with this iMac. Since 0.6.8 (obviously currently trying 1.4.2) I have been trying to install an update OS and I can’t. I can get High Sierra on it but nothing above that.

I have an iMac 12,2 with intel i7, 16GB RAM AMD 6770M and 500GB internal SSD. I have followed the videos from Mr. Macintosh and run into the same issues consistently. I have used different drives to create my OCLP install disk and still nothing. I have removed the RAM, reset NVRAM three times before I start the installs and nothing. I have tried Monterey, Ventura and Sonoma 14.3 and nothing. The closest I have gotten was Monterey but when it finished the install and goes to load it hangs at about a quarter of the loading and then reboots and does this as a cycle. I have attached two screen shots of the errors I constantly have. I think the ‘Your computer restarted’ screen is from times when I forget to hold down the option Key when going to install, but the ‘error occurred’ screen happens and I can’t do anything about it. I can’t even check the logs to see what the issue is. Has anyone experienced this? I love this computer, but I might just have to keep it as my Nobara Linux computer….any help is appreciated!