You can easily install WordPress on your site, and many other excellent scripts for ecommerce, cloud hosting, community portals and more using an automated installer. No experience necessary!
In you hosting Control Panel, click on Software. You will see a long list of available website software. Click on one to see full details. Select install now and add the details - things like the name of your site, the email address of the site administrator, often a user name and password.
You may select to have details of the installation sent to an email address.
On completion of the installation you will see a message showing the address of the site and the address of the administrator log in.
Remember when setting up your admin password to keep a note of it!
Enjoy being creative and productive with your website!