“We call time a fourth dimension but it is the only one forcing us to move through it.”
It might force us to move through it, but doesn’t determine the direction. Certain particle operations, when reversed, reverse direction through time. IOW, first particle exchange moving forward through time is exactly equivalent to opposite-valence operation moving backward through time. The two can’t be distinguished. There is no more “reality” to the forward operation than the backward one.
Let me know when you turn 18 again