You can only create databases through the NySQL Databases in vPanel. If you found another way to do it, don’t because you will run the risk of breaking the database.
Once you have created the database, find you WordPress database export and import it to phpMyAdmin (please don’t ask how, use the search bar, that’s why it’s here). Then upload the files via FileZilla to your /htdocs directory.
And as we have told you before, why don’t you just try, not ask a thousand questions before, and then if you do run into a problem, ask it!