how can I delete my development account ?

I think I have set this up wrong as my dashboard looks different to my sister's dashboard. On her headset she has a friend list on the right hand side and a few other options on the left side of the main window that I don't have. When I try to remove the admin fromnthe account I get a error message. I set up the organisation name PocoLoco244 then I add a 2nd user named PocoLoco24 and set this as a admin account. I was setting up the side quest app and think I went wrong somewhere along the line