The future is not fixed, if it would be all predestined there would be no free choice, there would be no choice for God.
God can see all the choices you can make, and their consequences.
He knows every possible action you could possible undertake and which ones you will take.
God sees you every day and probaly regrets most of the choices you(and me) make. But we are humans, imperfect and all and cannot be perfect in our choices because we are sinfull.