Never allow any individual to have power over you. Unless they created you and they move your limbs for you, they do not have power over you. Every individual is limited to how much power they have over you and that limit increases by how much power you give them by placing them significantly in your life. The more you rely on them for things, the more power you give them. The less you rely on them, the less power they have. Never become too reliant on people, so they are powerless on your ability to be happy or sad. Never place your happiness or sadness inside of people but keep the ability within yourself. If they are able to control your happiness or sadness, they have too much power over you, which you have given them.
You possess the strength, you possess the power. They do not. You are in control of who you are, they are not. You are in control of your daily actions, they are not. They do not move any part of your body for you, except when you agree to it, so know who is in control of the physical being, the reflection in the mirror and make sure it is you that is standing alone in the mirror without a reflection of any other individual.
Allah SWT has given us choices, so make power moves to move the insignificant figures in your life who seem to control every aspect of it by draining the life out of you and wanting to destroy it. Learn the power of distance and the learn the power of being the smaller individual in their eyes by taking the first step in forgiveness and distance, which will make you the bigger individual who has put ego aside. Be in control of the situations that have no power over you, when you in fact have the power to make the right decisions, that will lead you to a better place and having total control of the most important person. That is YOU!