1. How do i make it that when a user clicks "become organizer" instead of them becoming an organizer it says pending and i can either accept or decline?
This option is not available. I can add it but it will be custom work.
2. How do i get rid of the wordpress bar on the top when a user is logged in?
You can hide it using css:
padding-top: 0; // Move up the page's content by the bar's height
3. Dashboard mobile issue.
We are working on it. A fix will be available in next update.