HELP. moving site to a new domain

Hi, I have my business site hosted on wordpress (root directory) at https://www.mortgage604.com

I bought the new domain https://www.yourvancouvermortgagebroker.com and needed to move the whole site over.

I thought I followed the directions, but nothing works now, and I fear it’s getting worse.

First thing I did was back everything up. Then I logged in to wp-login and changed the URLs from mortgage604.com to yourvancouvermortgagebroker.com and I was instantly booted from the admin page, and the site didnt work. no big deal yet.

Then I basically took everything from the root, downloaded it, then uploaded it to a new folder labeled yourvancouvermortgage.com (with WP installed). But nothing works, now im in so deep. Any suggestions?

I’ve checked my PHPmyadmin to change URLs back, but I must be doing something wrong…

thanks