I think I broke my MacBook part 2

Okay I am still dealing with this stupid thing. So in my last post (I don't know how to post links plus I am on mobile) I got a bunch of help but nothing worked. I did recovery mode to only be told that I can't install the the old os I had because it doesn't like my hard drive so I use first aid on it and it's still not working which means I can't used my backup hard drive to fix whatever is going on.

Okay fine I will try installing onto the hard drive nope doesn't work. I wipe the drive and try again nope doesn't work. I read the how to on OCLP nothing works because I don't understand what the hell it's talking about that is why I follow videos. I'm not sure at this point what the hell is going on. I have add multiple custom mods and software before on computers and gaming consoles but this one is just not working.

I don't want to give up as I know I am so close but I just don't know what is going on.