The observer effect of quantum physics says the simple fact you do this will change the outcome. https://en.wikipedia.org/wiki/Observer_(quantum_physics)
And, of course, the time you spend writing things down will make everything take longer anyway…
You can thank Neils Bohr for that. (You might thank Heisenberg too, but I'm uncertain…)
@jackwilliambell It's actually true :) I act differently just from knowing that I am keeping track.