an ardent desire or longing, particularly for something once had; grief or regret for the absence or loss of something or someone

She knew she could change the world
So she did.

She knew she could be the hero
And she was.

She knew she had power
So she used it.

She thought she was alone
She never was.

that was slightly more positive... though the title is a little sad... still progress, at least! once again, please don't copy and repost as your own!