I purchased a web hosting; what should I do now?

The first thing you need to do is to upload the website online. You have everything that is needed to create 5 pages directly from the browser or any other web editor program but you can also hire a specialized company to do the job for you.
You can access the customer section where you can visualize the active services and you can also configure everything you need: email addresses, databases, FTP accounts, subdomains, etc.