Pray about and allow God to guide you through it. A principle I live by, which was instilled in me as a child by my Great-grandmother. "A child has a voice to be heard regardless of age. Just because someone is older doesn't make them right by any means"... Keep it respectfully (you can't control the way someone perceive things), truth and honesty is the best policy thats bottom line. Accept the consequences let it flow holding back will only allow this to fester.
A young girl at the church where I play is going through something similar. Her parents believe its their way or the highway. Trust me the situation is deteriorating as we speak.
As a parent, I practice the open door policy with my daughters. I believe this aids in independence and leadership nevertheless respect and unity within us. My philosophy... Peace~