Apart from a few changes in your settings, all your personal files should remain intact after the reinstallation. It is always a good idea to back-up your important data before attempting such a procedure but it is not nessecary.
And frankly enough, I do agree with the title of this thread.
Sometimes, it feels as though my life is just a never-ending circle of pain and misery. Not to mention sadness, worthlessness, and humiliation. But I can only cry inside. Deep behind my happy smile and bright personality is a sad and lonely person, a mere figment of my former self. Someday, all this pain will be over. I will drop down and die. At other times I ask myself, \"If only this would happen right now\".