How to create different folders and pages in domain in wordpress.

I am using avada theme in wordpress.

I want to make a custom page.

I want to do to everything (php code, mysql connection, html etc.)

Follow the steps below and you can do it yourself.

1.step

url: http://ceptebilisim.com/mytest

but mytest not found! Because it’s not done yet

2. step

go to the public_html folder (the web root)
wp-admin, wp-content, is here

you make directory as “mytest” 

3. step

mytest not found! Because emty in mytest directory

4. step

create index.php file in mytest folder.

5. step

refresh yourdomain.com/mytest

ok.