Disclaimer: I do not own Naruto, Kishimoto does.
Sakura could change everything or nothing. She held the power, She could be anything and everything she wanted. She could rule the world, she had seen it once too. She saw herself rich, famous, powerful, loved. She could do anything. She could stop a war or start one.
She had seen countless futures where all her dreams came true, where her family no longer looked at her with those hateful stares. She saw futures were there was no one but her. She saw many futures.
She had run through whole lives, telling people and keeping secrets. She'd tell someone and then see what would happen, often it ended badly. Only a few wouldn't try to use her. She would tell them when they meet. She made sure that only those who she trusted would figure it out. No one will know. She could control that much.
The one she hated the most was the original future. She would grow up as a Hyuuga, pampered and having had never left the grounds. One day her father would die and she would be cast out onto the street. She would die soon after. No one would remember her.
Her favourite though, it was one where she was with a man, a gorgeous man, the first person she had seen. She would love him. She saw some futures where that love killed her, where he killed her. Her family would die and so would she. Some others he'd give everything for her, loved her so much. Most of the time, though, he died, he died lost in his revenge. He died so many times. On a bridge, in a forest, in a desert, underground, in their home...She had to stop it. Already she loved him. She planned and planned. She was the only one who could save him, the only one who could change things.
Because, only those who know the future can change it and Sakura knew it. And she loved him so much that she would change the future for him.
I'll make sure everything you want will come true Sasuke.