WordPress is the most popular content management system in the world today. With over 30 million blogs, WordPress is easy to use and very powerful in terms of customizability. WordPress allows you to create a website on your own or you can hire someone to do it for you.
You can install WordPress themes and plugins from dashboard and also through Cpanel/file manager.Go to your WordPress dashboard and go to appearance >> Themes page. Then click on the Add New button above. Now select any theme you want to install and click install.