Q: used wrong admin account and info to set up mac want to change it

Create the 'right' account you want in the Users & Groups Preferences Pane. Make sure it's an admin account. Log in with it then delete the account you don't want. If there's any data in the account you don't want which you want to keep then move/copy that data to the Users/Shared folder first. Obviously you must make sure there's enough space on your hard drive to accommodate those changes.