She shook her head as if a physical motion would dislodge the thoughts that continued to rush through her mind about missed opportunities and wasted time. What good would it do to worry about what might have been if she'd only stopped lying to herself earlier? There was no way to change the past. Time turners couldn't go back that far in time even if she'd been able to save one from destruction during the battle that took place in the Department of Mysteries when she was a teenager. Allowing her emotions to control her would only result in mistakes and increased danger. She took several deep breaths to calm her nerves and her racing heart.