Congratulations on purchasing a new domain name and hosting. However, in order to set up a website, cPanel is necessary regardless of the fact if your website is HTML based or CMS based.
And Logging into cPanel is really easy.
However, in case you are not able to log in and have issues with remembering a password or your username, we would suggest you to contact your Web Hosting company. A good hosting company will always be able to help you out.
You can also comment down below your query and we will try our best to help you out