I checked your account, and I see you have one database which contains multiple WordPress installations. One set of tables appears to have been created by Softaculous, and I’m assuming the other tables are from your backup.
You can choose which set of tables your WordPress installation uses through the wp-config.php file of your site. In it is a variable $table_prefix. It’s currently set to a value that looks like wpXX_. Some of the tables in your database have that same wpXX_ prefix, others only have the wp_ prefix.
So if you change the $table_prefix variable from wpXX_ to wp_, WordPress should start loading all your previous pages, posts, settings, etc.
For future reference: if you want to migrate an existing site, you don’t want to setup a new site. Simply copy ALL files of your website, import the database, update the database credentials, and everything will be as you left it. Transplanting content between installations is much more difficult than just moving the entire installation.