No Admin Panel

Alright. A week or two ago I registered a new domain name and went to change my site url. I thought I did everything right through my domain registrar and web host, but today when I went to get to work, I noticed neither my previous URL nor my new URL would work.

I got in contact with my web host and they said I hadn’t updated my wp-config file (duh!!!). So he updated it while we were on chat, and then my new url said “error establishing database connection.” He didn’t know what was wrong because MySQL was working just fine. I went into MySQL and updated the URL’s and site titles since they were still showing the previous URL.

That seemed to do the trick, I could see my new site via the new URL and could login with the new username and password (that I just updated from my previous one). So once I log in to go to my admin panel, it’s not there. It only shows my new username and website, meaning I have no access to update versions, plugins, or themes. I then noticed when I hover over my site name and go to “visit site,” it redirects to my previous URL (which is a blank page).

I am assuming I’m going to have to start from scratch, which is fine, I deleted my installed themes (I have them backed up on my computer) from my file manager. But I can’t figure out where it isn’t changed to my new URL and why I can’t access the admin panel.

It does say my current username is the only user and is ADMIN.

Any help would be greatly appreciated.