You received your own website in the webschuur. That is cool, but what now? how to proceed?
Here is a summary, (change example.com into your own domain, off course).
Create the root account, the first account you create is automagically made root.
example.com/?q=user/register
note down the password in a safe place, but you will receive a mail too.
Create some new users at
example.com/?q=admin/user/create
Create a few roles, at least create a role called administrator.
example.com/?q=admin/access/roles
Put the users in the correct roles by editing the one by one @
example.com/?q=admin/user/