How to set a subdomain to a directory
You want to make a projects page using a sub-domain (i.e (xxxx).plox.host). Here the steps to doing it.
Step 1: Make the sub-domain. Via cPanel you want to press Subdomains and create one. (i.e. projects.plox.host).
Step 2: Make the directory. You need to go to your public_html directory and then make a new folder named whatever your subdomain is (i.e. your subdomain is blah.plox.host so then you'd make a new folder named "blah.plox.host").
Step 3: Upload your page to the directory. Then you're done.
Wallah! You have created a page for your subdomain!