First, welcome to the community.
It is generally a bad idea to always logon as root. Even if you are the only one using your computer, if you are connected to the Internet, anyone can virtually take control of your machine because they will have instant administrator privileges. This is what is really wrong with the first users on Windows computers.
It is possible to do what you want to do but you are not getting it from me. If there's anything, I'd want you to have a positive Linux experience.
The benefits may not be obvious now but you will be thankful that you are logon as a user whenever you use your computer, even if you needed to supply your root password every time you need to install/remove applications or do system-critical task.
Remember, there might only be you using your computer at your home but if you are connected to the outside world and the Internet, you can bet there are users waiting for you.