I'm glad Yona believes in predestined events because that is taking responsibility. Other psychics saying your free will changed an outcome is a cop-out.
That said, knowing things can be sped up or slowed down makes me paranoid, especially when I get a prediction that is somewhat in my control. For example Yona said I would take a class and meet someone in that class. At the time I was planning to take a class but it was online and solo so there was no way I would meet someone in it. And I made a point not to let that prediction influence my behavior. Like, I wasn't going to just sign up for a class because she said it would be a turning point. But then someone in my life was so incompetent with their role that I thought "omg I'm just going to learn to do this myself" and signed up for a class to do it. Then I remembered Yona's prediction. The class hasn't started yet, so I have no idea if it's accurate.