MY_Controller and login-authentication misunderstanding probably

[eluser]cideveloper[/eluser]
Do not make an Auth Controller. Make an auth library. Then make a MY_Controller that checks if the user is logged in by calling a method in your auth library. Extend all controllers that need to be protected with MY_Controller. Since you are starting off from the sounds of it I suggest using a pre-built auth library like ion auth. I use it extensively and only once in a while do I need to alter it.