Your free will outside a black hole is curtailed in exactly the same manner: you cannot do anything to avoid, or even delay, tomorrow.
A black hole is interesting because you inexorably move towards the singularity - which is a defined location in spacetime, and also has a boundary - the event horizon.
So now your freedom of action is reduced: you must move towards the singularity, but you also can't actually move outside of the event horizon either.