URGENT! FREAKING OUT … wordpress messed up

Ok so …

I was working on wordpress site https://www.nikita-andrews.com/bathroomsplus/ and wanted to move to another hosting server account under bathroomsplus.ca

I wanted to migrate the site to new host. So I backed up the database using MyAdminphp and saved all the files and wp-config.php of original site

I then went to General-settings-and changed the URL of the site then resaved the files to move them

anyway something happened and it wouldnt migrate over to new hosting service so I tried reuploading the wp-config.php file and all other files … and it is still directing to new url. and I cant log into the wp-admin for the original site … it pushes me over to new url. Any way to recover site?!

Im freaking out as all content seems to be gone

and I keep getting errors when trying to import the database. ??