My humble suggestion since you are so young is as follows. Try to remember that the way you think and feel NOW, is not the way you may think and feel as you get older. You have figured out that the organization is bunk. Good for you! You are way ahead of the game.
But so that you have the best way of retaining your family, and not living with strife and anxiety, I woudl say go along to get along currently. Get reinstated, and as you get older (how old are you), you can make your life your own. Don't be in a rush to leave, educate yourself vigerously, and plan your life NOT worrying about this silly religion. Once you have the motive, self confidence, and plan to enact your life.....the elders and the entire system will just sort of fall away as silly to you. You can speak to your parents and siblings on their level.
Don't lose your family. Don't be rash. Try to think LONG term. Today is just a day. Its early in your life. BE PATIENT. EDUCATE YOURSELF.
May I ask how old you are, and the basic reason for disfellowshipping? (no real details needed).
Take care!