I'm about to give up

I had pihole/unbound up and running fine, the I updated and have never been able to get it running again. It actually seems to have screwed up several things but that later.
I uninstalled. I see that things were updated and fixed for version 6 so I go an install it again. Well, it seems that port 10443 is being used (don’t know if pihole used it before, did not look) so I change it, port 10445. I add a password in the config file. I install it, run it, put the password in, and it says wrong password. I try to change the password in the terminal and it tells me it’s in invalid command. I’m at a complete loss on this. HELP
Steve