When you ask for something, there are three way to go about that.
You can beg, and that is moved by fear. Fear of missing a deadline, of losing your job, of being misrepresented, of being misunderstood, of failing, of making mistakes.
You can demand, and that is moved by power. Power is fluid, and so even when you are not in a position of power, you can still act assertively, pretending things get done your way.
You can sell, and that is moved by connection. You have something to give, you have something to take. You know when it is time to let go, and what drives you is understanding how to get to a situation where both parties win.