Error installing application on shared host

im trying to configure my cpanel to install a laravel app, im trying to do a different way that shows online (ex: move assets from public to public_html), but i feel that is not the right way and also duplicating files.

So im trying to change the document root of cpanel (public_html) to public laravel way.

So what i try is to create a new domain addon but with the same of the current domain im using on the site and gives me a error of:

"You cannot park your main domain."

Print of panel that im trying to change configs:

I have access to whm to manage my accounts, in case that i need more permissions, but does someone have a ideia how can i change or configure my site root paths on cpanel?

via Chebli Mohamed