Don't get me wrong but from what You wrote I still don't know how to do all this.
Of course... I could install my distribution again but the point is I want to learn linux, not only reinstall it whenever I mess something up. If You have any information on how to do it, please post it here. I will read all of it carefully (I really want to learn linux)
Step-by-step instructions or any kind of descriptions would be best for my level of linux understanding (almost zero)