Being decisive means that, once you commit to something, there is no wavering.
“Do I go to the gym today?”
“What if I just make today my cheat day?”
“I can work on it tomorrow…”
Being decisive is like flipping the switch and the light comes on; Now that you’ve decided, there is no question.
You’re going to the gym today, Cheat day is on Friday and you have to work on it every day…You don’t have to think about it because it’s already been decided.