Help making a new VTC system

Hi there I am trying to make a new VTC System for my community, I am having some issues displaying information from database.

What I am doing is when someone applies and accepted, it will show up on there homepage ie via repeating group for example. I am giving them information like if they are accepted/denied, training date etc.

I show you what I have so far, the only people I want to update this is Admins on my site. So not sure how I can do that yet?

I am trying to make quite a good system but having some problems lol, I think I need to go back and do tutorials, but if someone can help me with just displaying data from database first, that be most greatful!