I am having a problem here but i don't kow weather it's normal or just messing up.

I want to be able to have admin access just like the root but wothout logging as root. When I log in to my regular account and type in the shell:
su
than the admin password

it than changes to [root@localhost <name>]#, now i know this means that i have admin privelages, but still there are things i am still restricted in doing, for example: i can't edit anythign in readonly documents on text editor (only when i log on as root), it still asks me for root password when i try to open certain applications, especially in the system settings?

How can i have full root control through my account without this happening?

this is regards to redhat 8

thanks.

I normally open either the Filemanager (Super User mode) or use su in a terminal and then open kwrite, kate, konqueror or whatever as root.

Running as root or as a user with full permissions is a recipe for disaster. Some of these files are accessible by root only for a reason. If you were able to edit/delete willy-nilly you run the risk of seriously messing up your pc. And if you get hacked the hacker has the full run of your system.

In a terminal, you can use :

su -

in order to get a similar effect as having logged in as root. As XavirP mentioned, be carefull when running as root because you can really bork your sytem if you're not cautious.