The best way to start is to install demo content. If you want to install demo content please do the following:
First, delete all sample content (posts and pages) which is automatically created when WordPress is installed. If you have already added a new content, please make sure to do the backup in order to save the content. After the backup, delete all content and you can start with the next steps:
1. Start with fresh WordPress installation and delete all sample content (like posts and pages) which is automatically created when WordPress is installed.
2. Go to ‘Tools > Import > WordPress’ and install WordPress Importer plugin if it is not already installed.
3. When it is installed, choose xml file from demo_data folder and click ‘Upload file and import’. On the following screen make sure that ‘Download and import file attachments’ is checked. Click ‘Submit’ button and wait until import is finished.
If import appears broken, please delete any imported menus from Appearance > Menus and repeat the import. Do the same again if necessary (e.g. 5-10 times) until import is completed.
Additionally, because import process depends on server setup, you may ask your hosting provider for help.