you've logged into your system
you're logged as root and got a shell.
First add new user, because you shouldn't work as root
# /usr/sbin/useradd YOUR_USER_NAME
# passwd YOUR_USER_NAME
Now, I guess you haven't installed X, and since you're new to linux it would be hard for you to work without x11.
just to make sure, type
# ls -l /etc/X11/prefdm
if you didn't got an error, it meas that you have X11 installed
# vi /etc/inittab
go to the end of the file and add this line
press CTRL+: and type wq and press enter
# /sbin/init -l 5