I don't know where you are in your walk with God, but I've learned that the situations in my life are to point out my own failings. Of course, at first, I didn't want to accept that, because I have been severely abused from a child to present day by the same people. What I've gone through and still go through is not what most people go through. I keep looking for something familiar in the bible, but it's hard to find the behaviors I'm experiencing from people today in the bible. Except Micah 7:4-6, and all of it applies to me. Cousins, brother, husband, aunts, uncles, authorities, neighbors, etc. Before I knew who was involved in trying to destroy me and my life, I was very confused. God has revealed it. Now I'm fighting some in court for protective orders because when I found out who the main persons were, and my attempted to protect a disabled person who they were also abusing, I was threatened harshly. What they were doing to me was in secrete, but now that I have found out, they have gotten even more desperate. Why is God allowing this. I really have no idea, yet. He has a plan!
But throughout the years I have had to suffer this, God has worked with me to change me. I did not want to be bitter, unloving, angry, and God has helped me.
Now, it's very possible that what's being done to you is intentional. Maybe not as severe as my situation, but nonetheless, you must come to terms with it. You must draw close to God who is your strength. And you must cry out to God to remove the bitterness, anger, hate, shame, guilt, etc. He will do it. He did it for me. Ask Him to calm you and allow you to accept what you do not want to accept about your family, that is, the truth that they are these types of people, and they are hurting you. Ask Him to help you to see the truth and accept it. Ask Him to take away your guilt and shame that you might be experiencing from their abuse. He will do it!
I pray you are granted a God given revelation that will strengthen you, change your mind and cause you to walk in power, love, and sound mind, 2 Timothy 1:7.