Computer won't let me make any changes without a password
I just upgraded to Catalina. I can't create or rename folders without being asked for my admin password. I tried to change the admin's permission on my hard drive from "read only" to "read and write" but it tells me I don't have permission to do that, either. What do I do? I'm logged into the admin account (which is the only user account on the computer), I want to be able to do anything without entering my password at every single step.
MacBook Pro 15", macOS 10.15