You should be able to type “startx” to start the X server. That should bring you to a desktop, if you have a GUI installed. Be very careful though – the root user can change just about anything on the system, so it’s very easy to break something. You may want to add a new user with limited permissions.

In the terminal:

# adduser <type username>

You will then be asked for some details – define a password, etc…

You should then be able to type:

# exit

Which will present you with a login prompt, allowing you to log in under the limited account you just created.

My apologies if you know this already, I’m just making a few assumptions given the question.

If “startx” doesn’t work, let us know.