Foreword: Orochimaru does not exist in this fanfic. However, Sasuke did not make friends with ANYONE in the village, remaining alone. Takes place in Shippuden, but altered storyline.
Sasuke heard the words over and over again in his head. "Live in fear of me. Live every moment of your life afraid. Hate me. You will hate me."
Sasuke screamed, and woke up from his sleep in a cold sweat. He looked around, shivering under his blankets. There was no one there. No one at all. He was alone. He was the last one. The only one. The only person left alive in the bloody fields of the Uchiha grounds. And it had been that way for three years.
Sasuke screamed again, but this time, not in fear of the apparition in his dream. He screamed in anger, hatred, releasing the most raw, primal feelings within him. He wanted to hurt something. His seething emotions swirled within him: Sadness, anger, hatred, and fear. Love and loss. He turned, punching at the first thing he saw: the door. Sasuke's fist went straight through, shattering the aged oak door, and the needles of wood slid into the skin of his hand and wrist. He screamed again in anguish, ripping the wood out of his arm.
With the surge of emotion sated, he lay down on his bed again, leaving the covers off. Sasuke's pulsing adrenaline brought warmth and heat to his body. He glanced around his barren room, and then closed his eyes.
He rose in the morning, his arm aching in agony. Glancing down at it, he noticed the scabs all over it, and dried blood stained his sheets. As he got dressed, he realized that the arm guards that he wore did more than protect his arms: they concealed them. His room was practically destroyed, with holes in the furniture and walls, from his outbursts of emotion. After he moved out of this room, there was only one room left that he hadn't destroyed. He shuddered, and went to eat his breakfast. Alone.
Sasuke came back from training later that day, and locked himself in his room. He was afraid of himself. Afraid of what he would do. When he had been teaching Academy Students that day, one of them had been particularly obnoxious. Shivering, Sasuke remembered what he had done. He had picked up the boy, and thrown him out of the window. He never wanted to come out of his room. He didn't want anyone to come in. But Sasuke was left alone in his room.
Alone with his own thoughts. Alone, and no one was ever going to come to his side. No one cared about him. He was driven into a fit of anger again. Anger at his brother, his brother who killed the entire clan. His brother who poisoned his life. Itachi Uchiha. The one person who was responsible for his whole miserable life. His brother. He drove his fist into the wall, destroying anything that he could.
As the red cloud of rage began to fade from his eyes, he saw his room. If it could be called a room. Woefully, he picked up his clothes and padded to that room. The final unused room in the entire estate. He stopped still right before his hand touched the doorknob, and it brought back his memories of despair. And then, with an iron resolve, he thrust the door open.
His parents bodies lay on the floor, untouched by the years. They were dead. Stone cold. And the red stain of blood ran all around the room. Sasuke dropped his bedroll, horrified by the scene portrayed in front of him. He screamed in anger. He screamed in fear. He screamed of hatred.
And then, when it felt like he couldn't scream anymore, Sasuke gave up. He stop moving. His heart began to beat sluggishly, and Sasuke reached down, and grabbed the katana that Itachi had left those many years ago. He reversed the blade, and stabbed himself through the heart, smiling and saying, "Now I do not live in fear of you, brother. I am free." And with that, the legacy of the Uchiha clan came to an end.