At the moment when you select a choice, select an action, that is totally random at that moment as you see it from the perspective of someone in the present. After that moment, the choice is already made and there is no more randomness. So tell me, if you go back to a state in time and have the exact same thoughts, be in the exact same state where everything is the exact same, how could you pick something else besides the choice you already made before going back in time? The choice was made of your own free will and you decided to pick that exact choice so why would it change?
Why would the movement of molecules, particles, energy waves etc etc change if the universe is reset? True, they were completely random at start, no real lines connecting any of them and you didn't know what would come but for someone in the future who knows what is to come and what is to transpire, there are lines connecting everything. You could randomly pick letters and numbers like 1/2/g/s/H/6, totally random right? But for someone in the future who knows what you pick there are lines connecting those choices, a sequence.